14 (fourteen) is a

natural number In mathematics, the natural numbers are those numbers used for counting (as in "there are ''six'' coins on the table") and ordering (as in "this is the ''third'' largest city in the country"). Numbers used for counting are called ''Cardinal n ...

following 13 and preceding 15. In relation to the word "four" ( 4), 14 is spelled "fourteen".

In mathematics

* 14 is a

composite number A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Equivalently, it is a positive integer that has at least one divisor other than 1 and itself. Every positive integer is composite, prime, ...

. * 14 is a

square pyramidal number In mathematics, a pyramid number, or square pyramidal number, is a natural number that counts the number of stacked spheres in a pyramid with a square base. The study of these numbers goes back to Archimedes and Fibonacci. They are part of a broa ...

. * 14 is a

stella octangula number In mathematics, a stella octangula number is a figurate number based on the stella octangula, of the form .. The sequence of stella octangula numbers is :0, 1, 14, 51, 124, 245, 426, 679, 1016, 1449, 1990, ... Only two of these numbers are squar ...

. * In

hexadecimal In mathematics and computing, the hexadecimal (also base-16 or simply hex) numeral system is a positional numeral system that represents numbers using a radix (base) of 16. Unlike the decimal system representing numbers using 10 symbols, hexa ...

, fourteen is represented as E * Fourteen is the lowest even ''n'' for which the equation φ(''x'') = ''n'' has no solution, making it the first even nontotient (see

Euler's totient function In number theory, Euler's totient function counts the positive integers up to a given integer that are relatively prime to . It is written using the Greek letter phi as \varphi(n) or \phi(n), and may also be called Euler's phi function. In ot ...

). * Take a

set Set, The Set, SET or SETS may refer to: Science, technology, and mathematics Mathematics *Set (mathematics), a collection of elements *Category of sets, the category whose objects and morphisms are sets and total functions, respectively Electro ...

real number In mathematics, a real number is a number that can be used to measure a ''continuous'' one-dimensional quantity such as a distance, duration or temperature. Here, ''continuous'' means that values can have arbitrarily small variations. Every real ...

s and apply the closure and complement operations to it in any possible sequence. At most 14 distinct sets can be generated in this way. ** This holds even if the reals are replaced by a more general

topological space In mathematics, a topological space is, roughly speaking, a geometrical space in which closeness is defined but cannot necessarily be measured by a numeric distance. More specifically, a topological space is a set whose elements are called points ...

. See

Kuratowski's closure-complement problem In point-set topology, Kuratowski's closure-complement problem asks for the largest number of distinct sets obtainable by repeatedly applying the set operations of closure and complement to a given starting subset of a topological space. The answ ...

* 14 is a Catalan number. * Fourteen is a Companion Pell number. * According to the

Shapiro inequality In mathematics, the Shapiro inequality is an inequality (mathematics), inequality proposed by Harold S. Shapiro in 1954. Statement of the inequality Suppose n is a natural number and x_1, x_2, \dots, x_n are positive numbers and: * n is even and ...

14 is the least number ''n'' such that there exist ''x'', ''x'', ..., ''x'' such that :

\sum_^ \frac < \frac

where ''x'' = ''x'', ''x'' = ''x''. * There are fourteen possible

Bravais lattices In geometry and crystallography, a Bravais lattice, named after , is an infinite array of discrete points generated by a set of Translation operator (quantum mechanics)#Discrete Translational Symmetry, discrete translation operations described in t ...

that fill three-dimensional space.

In science

Chemistry

*The

atomic number The atomic number or nuclear charge number (symbol ''Z'') of a chemical element is the charge number of an atomic nucleus. For ordinary nuclei, this is equal to the proton number (''n''p) or the number of protons found in the nucleus of every ...

silicon Silicon is a chemical element with the symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster, and is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic tab ...

*The approximate atomic weight of

nitrogen Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at se ...

*The maximum number of electrons that can fit in an f sublevel * Group 14 elements in the periodic table.

Astronomy

* Messier object M14, a magnitude 9.5 globular cluster in the constellation Ophiuchus *The

New General Catalogue The ''New General Catalogue of Nebulae and Clusters of Stars'' (abbreviated NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies, star clusters and ...

object

NGC 14 NGC 14 is an irregular galaxy in the Pegasus constellation. It was included in Halton Arp's Atlas of Peculiar Galaxies, under the section "Galaxies with the appearance of fission," since the irregular appearance of this galaxy causes it to look ...

, a magnitude 12.5

irregular galaxy An irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy. Irregular galaxies do not fall into any of the regular classes of the Hubble sequence, and they are often chaotic in appearanc ...

in the

constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The origins of the e ...

Pegasus Pegasus ( grc-gre, Πήγασος, Pḗgasos; la, Pegasus, Pegasos) is one of the best known creatures in Greek mythology. He is a winged divine stallion usually depicted as pure white in color. He was sired by Poseidon, in his role as hor ...

In religion and mythology

Christianity

*According to the

Gospel of Matthew The Gospel of Matthew), or simply Matthew. It is most commonly abbreviated as "Matt." is the first book of the New Testament of the Bible and one of the three synoptic Gospels. It tells how Israel's Messiah, Jesus, comes to his people and for ...

"there were fourteen generations in all from

Abraham Abraham, ; ar, , , name=, group= (originally Abram) is the common Hebrew patriarch of the Abrahamic religions, including Judaism, Christianity, and Islam. In Judaism, he is the founding father of the special relationship between the Jew ...

David David (; , "beloved one") (traditional spelling), , ''Dāwūd''; grc-koi, Δαυΐδ, Dauíd; la, Davidus, David; gez , ዳዊት, ''Dawit''; xcl, Դաւիթ, ''Dawitʿ''; cu, Давíдъ, ''Davidŭ''; possibly meaning "beloved one". w ...

, fourteen generations from David to the exile to Babylon, and fourteen from the exile to the Messiah". ( Matthew 1, 17) *The number of

Stations of the Cross The Stations of the Cross or the Way of the Cross, also known as the Way of Sorrows or the Via Crucis, refers to a series of images depicting Jesus Christ on the day of Crucifixion of Jesus, his crucifixion and accompanying prayers. The station ...

observed by some Christian denominations. *The

Fourteen Holy Helpers The Fourteen Holy Helpers (german: Vierzehn Nothelfer, la, Quattuordecim auxiliatores) are a group of saints venerated together by Roman Catholic Christians because their intercession is believed to be particularly effective, especially against ...

were a group of

saint In religious belief, a saint is a person who is recognized as having an exceptional degree of Q-D-Š, holiness, likeness, or closeness to God. However, the use of the term ''saint'' depends on the context and Christian denomination, denominat ...

s formerly venerated together by

Roman Catholic Roman or Romans most often refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *'' Epistle to the Romans'', shortened to ''Romans'', a lette ...

Islam

*The number of

Muqattaʿat The mysterious letters (''muqaṭṭaʿāt'', ar, حُرُوف مُقَطَّعَات ''ḥurūf muqaṭṭaʿāt'', "disjoined letters" or "disconnected letters") are combinations of between one and five Arabic letters figuring at the begin ...

in the

Quran The Quran (, ; Standard Arabic: , Classical Arabic, Quranic Arabic: , , 'the recitation'), also romanized Qur'an or Koran, is the central religious text of Islam, believed by Muslims to be a revelation in Islam, revelation from God in Islam, ...

. *Significant for

Twelver Shia Muslims Twelver Shīʿīsm ( ar, ٱثْنَا عَشَرِيَّة; '), also known as Imāmīyyah ( ar, إِمَامِيَّة), is the largest branch of Shia Islam, Shīʿa Islam, comprising about 85 percent of all Shīʿa Muslims. The term ''Twelver ...

who follow the Fourteen Infallibles.

Hinduism

* The number of years of

Rama Rama (; ), Ram, Raman or Ramar, also known as Ramachandra (; , ), is a major deity in Hinduism. He is the seventh and one of the most popular '' avatars'' of Vishnu. In Rama-centric traditions of Hinduism, he is considered the Supreme Bein ...

's exile in the forest with

Sita Sita (; ) also called as Janaki and Vaidehi is a Hindu goddess and the female protagonist of the Hindu epic, ''Ramayana''. She is the consort of Rama, the avatar of the god Vishnu, and is regarded as a form of Vishnu's consort, Lakshmi. She ...

and Lakshman.

Mythology

The number of pieces the body of

Osiris Osiris (, from Egyptian ''wsjr'', cop, ⲟⲩⲥⲓⲣⲉ , ; Phoenician: 𐤀𐤎𐤓, romanized: ʾsr) is the god of fertility, agriculture, the afterlife, the dead, resurrection, life, and vegetation in ancient Egyptian religion. He was ...

was torn into by his fratricidal brother

Set Set, The Set, SET or SETS may refer to: Science, technology, and mathematics Mathematics *Set (mathematics), a collection of elements *Category of sets, the category whose objects and morphisms are sets and total functions, respectively Electro ...

. The number of sacrificial victims of the Minotaur.

Age 14

*14 is the earliest age that the emancipation of minors can occur in the U.S. *Minimum age a person can purchase, rent, or buy tickets to a 14A rated movie in Canada without an adult. Ratings are provincial, so ratings may vary. A movie can be 14A in one or some provinces and PG in other provinces. A movie can also be rated 14A in one or some provinces and 18A in other provinces. Quebec has a different rating system for films. * Youngest age in Canada a person can watch a 14+ rated show without consent from a legal guardian. *The U.S. TV Parental Guidelines has a rating called "TV-14" which strongly recommends parental guidance for children under the age of fourteen watching the program. *Minimum age at which one can view, rent, purchase, or buy tickets to an 18A rated movie with an accompanying adult in the Canadian provinces of the Maritimes and Manitoba. *Minimum age at which one can work in many U.S. states. Parental consent may be required, depending on the state. * Minimum age at which one can drive a vehicle in the U.S. with a driver's license (with the supervision of an adult over 18 years of age, and with a valid, unmarked driver's license, and at least 365 days of experience driving an actual automobile) *The minimum age limit to drive a 50cc motorbike in Italy. *The most common

age of criminal responsibility The age of criminal responsibility is the age below which a child is deemed incapable of having committed a criminal offence. In legal terms, it is referred to as a defence/defense of infancy, which is a form of defense known as an excuse so tha ...

in Europe. *In some countries, it is the

age of sexual consent Age or AGE may refer to: Time and its effects * Age, the amount of time someone or something has been alive or has existed ** East Asian age reckoning, an Asian system of marking age starting at 1 * Ageing or aging, the process of becoming older * ...

In sports

* In

American football American football (referred to simply as football in the United States and Canada), also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, the team with ...

, the

National Football League The National Football League (NFL) is a professional American football league that consists of 32 teams, divided equally between the American Football Conference (AFC) and the National Football Conference (NFC). The NFL is one of the ...

playoffs The playoffs, play-offs, postseason or finals of a sports league are a competition played after the regular season by the top competitors to determine the league champion or a similar accolade. Depending on the league, the playoffs may be eithe ...

have involved 14 teams since the 2020 season. * In golf, a player can have no more than 14 clubs in the bag. * In

rugby union Rugby union, commonly known simply as rugby, is a close-contact team sport that originated at Rugby School in the first half of the 19th century. One of the two codes of rugby football, it is based on running with the ball in hand. In its m ...

, the starting right wing wears the 14 shirt

In other fields

Fourteen is: *The number of days in a fortnight. *The

Fourteenth Amendment to the United States Constitution The Fourteenth Amendment (Amendment XIV) to the United States Constitution was adopted on July 9, 1868, as one of the Reconstruction Amendments. Often considered as one of the most consequential amendments, it addresses citizenship rights and ...

gave citizenship to those of African descent, in a post-

Civil War A civil war or intrastate war is a war between organized groups within the same state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies ...

(

Reconstruction Reconstruction may refer to: Politics, history, and sociology *Reconstruction (law), the transfer of a company's (or several companies') business to a new company *''Perestroika'' (Russian for "reconstruction"), a late 20th century Soviet Union ...

) measure aimed at restoring the rights of slaves. *In traditional British units of

weight In science and engineering, the weight of an object is the force acting on the object due to gravity. Some standard textbooks define weight as a Euclidean vector, vector quantity, the gravitational force acting on the object. Others define weigh ...

, the number of pounds in a stone. *The number of points outlined by President

Woodrow Wilson Thomas Woodrow Wilson (December 28, 1856February 3, 1924) was an American politician and academic who served as the 28th president of the United States from 1913 to 1921. A member of the Democratic Party, Wilson served as the president of ...

for reconstructing a new

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

following

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

, see Fourteen Points. *The number of '' Enigma Variations'' composed by

Edward Elgar Sir Edward William Elgar, 1st Baronet, (; 2 June 1857 – 23 February 1934) was an English composer, many of whose works have entered the British and international classical concert repertoire. Among his best-known compositions are orchestr ...

. *The number of favored rows in the Roman theater for members of the equestrian order according to the ''

lex Roscia theatralis The ''lex Roscia theatralis'' was a Roman law of 67 BC that reserved 14 rows of good seats in the theater for members of the equestrian order. It was sponsored by the tribune Roscius Otho. The ''equites'' or "knights" who had this privilege were p ...

'' issued in 67 BC. *The section that one goes to when one dies in the

GrailQuest GrailQuest is a series of gamebooks by J. H. Brennan. The books are illustrated by John Higgins. The stories follow the adventures of a young hero named Pip, who is often called upon by Merlin to right wrongs and save the realm from evil. The ser ...

books. *The number of legs on a

woodlouse A woodlouse (plural woodlice) is an isopod crustacean from the polyphyleticThe current consensus is that Oniscidea is actually triphyletic suborder Oniscidea within the order Isopoda. They get their name from often being found in old wood. ...

, as well as on '' Hallucigenia''. *A common designation for the

thirteenth floor The thirteenth floor is a designation of a level of a multi-level building that is often omitted in countries where the number is considered unlucky. Omitting the 13th floor may take a variety of forms; the most common include denoting what wo ...

in many buildings for

superstitious A superstition is any belief or practice considered by non-practitioners to be irrational or supernatural, attributed to fate or magic, perceived supernatural influence, or fear of that which is unknown. It is commonly applied to beliefs and pr ...

reasons. *There are 14

British Overseas Territories The British Overseas Territories (BOTs), also known as the United Kingdom Overseas Territories (UKOTs), are fourteen dependent territory, territories with a constitutional and historical link with the United Kingdom. They are the last remna ...

of the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...

. *The number of lines in a

sonnet A sonnet is a poetic form that originated in the poetry composed at the Court of the Holy Roman Emperor Frederick II in the Sicilian city of Palermo. The 13th-century poet and notary Giacomo da Lentini is credited with the sonnet's invention, ...

. * The Number 14 airship by Alberto Santos Dumont was used to test the aerodynamics of his

14-bis The ''14-bis'' (french: Quatorze-bis), (), also known as ("bird of prey" in French), was a pioneer era, canard-style biplane designed and built by Brazilian aviation pioneer Alberto Santos-Dumont. In 1906, near Paris, the ''14-bis'' made a m ...

airplane. * The number of the French department Calvados. * XIV is a storage server manufactured by IBM. It goes by name of "XIV" and is pronounced as the separate letters "X", "I", "V". * The Piano Sonata No. 14, also known as ''Moonlight Sonata'', is one of the most famous piano sonatas composed by

Ludwig van Beethoven Ludwig van Beethoven (baptised 17 December 177026 March 1827) was a German composer and pianist. Beethoven remains one of the most admired composers in the history of Western music; his works rank amongst the most performed of the classical ...

. * A symbol of infinity in "

The House of Asterion "The House of Asterion" (original Spanish title: "") is a short story by Argentine writer Jorge Luis Borges. The story was first published in 1947 in the literary magazine ''Los Anales de Buenos Aires'' and republished in Borges's short story c ...

" (" es, La casa de Asterión", 1947) by

Jorge Luis Borges Jorge Francisco Isidoro Luis Borges Acevedo (; ; 24 August 1899 – 14 June 1986) was an Argentine short-story writer, essayist, poet and translator, as well as a key figure in Spanish-language and international literature. His best-known bo ...

,Jean Ann Bowman, ''Jorge Luis Borges: A study of criticism in the United States'', M.A. thesis submitted to and approved by the Graduate Faculty of Texas Tech University, May 1987. itself a reference to the 14 sacrificial victims of the Minotaur. * The

Fourteen Words Fourteen Words (also abbreviated 14 or 14/ 88) is a reference to two slogans originated by David Eden Lane, one of nine founding members of the defunct white separatist insurrectionary terrorist organization The Order. The slogans have served ...

are a phrase used by white supremacists. * Nuestra Familia is a gang that uses "XIV" as their symbol because the 14th letter of the Spanish alphabet is "N". * The room number on the top floor of the hospital where

Oliver Hardy Oliver Norvell Hardy (born Norvell Hardy; January 18, 1892 – August 7, 1957) was an American comic actor and one half of Laurel and Hardy, the double act that began in the era of silent films and lasted from 1926 to 1957. He appeared with his c ...

is visited by

Stan Laurel Stan Laurel (born Arthur Stanley Jefferson; 16 June 1890 – 23 February 1965) was an English comic actor, writer, and film director who was one half of the comedy double act, duo Laurel and Hardy. He appeared with his comedy partner Oliver Ha ...

in the movie '' County Hospital'' (1932). *In the epic fantasy series ''

A Song of Ice and Fire ''A Song of Ice and Fire'' is a series of epic fantasy novels by the American novelist and screenwriter George R. R. Martin. He began the first volume of the series, ''A Game of Thrones'', in 1991, and it was published in 1996. Martin, who init ...

'', the Fourteen Flames are a chain of volcanoes that stretch across the Valyrian peninsula. * There are 14 books in the main sequence of the epic fantasy series ''

The Wheel of Time ''The Wheel of Time'' is a series of high fantasy novels by American author Robert Jordan, with Brandon Sanderson as a co-author for the final three novels. Originally planned as a six-book series, ''The Wheel of Time'' spans 14 volumes, in a ...

'' by Robert Jordan. * The number of years Edmond Dantes spent imprisoned in the Chateau d'If in

Alexandre Dumas Alexandre Dumas (, ; ; born Dumas Davy de la Pailleterie (), 24 July 1802 – 5 December 1870), also known as Alexandre Dumas père (where '' '' is French for 'father', to distinguish him from his son Alexandre Dumas fils), was a French writer ...

' ''

The Count of Monte Cristo ''The Count of Monte Cristo'' (french: Le Comte de Monte-Cristo) is an adventure novel written by French author Alexandre Dumas (''père'') completed in 1844. It is one of the author's more popular works, along with ''The Three Musketeers''. Li ...

''. * Unlike most other mammal species which commonly have 20 digits (''toes''), 14 is the number of digits of the guinea pig or domestic guinea pig (''Cavia porcellus''), also known as the cavy or domestic cavy ().

References

{{Integers, zero Integers