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 ...

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. * 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, 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 In number theory, a nontotient is a positive integer ''n'' which is not a totient number: it is not in the range of Euler's totient function φ, that is, the equation φ(''x'') = ''n'' has no solution ''x''. In other words, ''n'' is a nontotien ...

(see Euler's totient function). * Take a set of

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 ...

s and apply the closure and

complement A complement is something that completes something else. Complement may refer specifically to: The arts * Complement (music), an interval that, when added to another, spans an octave ** Aggregate complementation, the separation of pitch-clas ...

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 po ...

. See Kuratowski's closure-complement problem * 14 is a

Catalan number In combinatorial mathematics, the Catalan numbers are a sequence of natural numbers that occur in various counting problems, often involving recursively defined objects. They are named after the French-Belgian mathematician Eugène Charles Ca ...

. * 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 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 ta ...

*The approximate

atomic weight Relative atomic mass (symbol: ''A''; sometimes abbreviated RAM or r.a.m.), also known by the deprecated synonym atomic weight, is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a giv ...

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 element The carbon group is a periodic table group consisting of carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl). It lies within the p-block. In modern IUPAC notation, it is called group 14. In the field of semicon ...

s in the periodic table.

Astronomy

Messier object The Messier objects are a set of 110 astronomical objects catalogued by the French astronomer Charles Messier in his ''Catalogue des Nébuleuses et des Amas d'Étoiles'' (''Catalogue of Nebulae and Star Clusters''). Because Messier was only in ...

M14, a

magnitude Magnitude may refer to: Mathematics *Euclidean vector, a quantity defined by both its magnitude and its direction *Magnitude (mathematics), the relative size of an object *Norm (mathematics), a term for the size or length of a vector *Order of ...

9.5

globular cluster A globular cluster is a spheroidal conglomeration of stars. Globular clusters are bound together by gravity, with a higher concentration of stars towards their centers. They can contain anywhere from tens of thousands to many millions of membe ...

in the constellation

Ophiuchus Ophiuchus () is a large constellation straddling the celestial equator. Its name comes from the Ancient Greek (), meaning "serpent-bearer", and it is commonly represented as a man grasping a snake. The serpent is represented by the constella ...

*The New General Catalogue object NGC 14, 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 appearance, ...

in the constellation Pegasus

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 form ...

"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 Je ...

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 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 saints 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 let ...

Islam

*The number of Muqattaʿat in the

Quran The Quran (, ; Standard 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 from God. It is organized in 114 chapters (pl.: , s ...

. *Significant for Twelver Shia Muslims who follow

the Fourteen Infallibles The Fourteen Infallibles ( ar, ٱلْمَعْصُومُون ٱلْأَرْبَعَة عَشَر, '; fa, چهارده معصومین, ') in Twelver Shia Islam are the Islamic prophet Muhammad, his daughter Fatima Zahra, and the Twelve Imams. ...

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 Lakshmana ( sa, लक्ष्मण, lit=the fortunate one, translit=Lakṣmaṇa), also spelled as Laxmana, is the younger brother of Rama and his loyalist in the Hindu epic ''Ramayana''. He bears the epithets of Saumitra () and Ramanuja (). ...

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 wa ...

was torn into by his fratricidal brother Set. The number of sacrificial victims of the Minotaur.

Age 14

*14 is the earliest age that the

emancipation of minors Emancipation of minors is a legal mechanism by which a minor before attaining the age of majority is freed from control by their parents or guardians, and the parents or guardians are freed from responsibility for their child. Minors are norm ...

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 The TV Parental Guidelines are a television content rating system in the United States that was first proposed on December 19, 1996, by the United States Congress, the television industry and the federal communication commission (FCC), and went ...

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 in Europe. *In some countries, it is the age of sexual consent.

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 wi ...

, 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 eit ...

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 it ...

, the starting right wing wears the 14 shirt

In other fields

Fourteen is: *The number of days in a

fortnight A fortnight is a unit of time equal to 14 days (two weeks). The word derives from the Old English term , meaning "" (or "fourteen days," since the Anglo-Saxons counted by nights). Astronomy and tides In astronomy, a ''lunar fortnight'' is ha ...

. *The Fourteenth Amendment to the United States Constitution 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 Unio ...

) 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 vector quantity, the gravitational force acting on the object. Others define weight as a scalar qua ...

, the number of pounds in a

stone In geology, rock (or stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its Chemical compound, chemical composition, and the way in which it is formed. Rocks ...

. *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 subcontinent of Eurasia and it is located entirel ...

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 U.S. President Woodrow Wilson The Fourteen Points was a statement of principles for peace that was to be used for peace negotiations in order to end World War I. The principles were outlined in a January 8, 1918 speech on war aims and peace terms ...

. *The number of ''

Enigma Variations Edward Elgar composed his ''Variations on an Original Theme'', Op. 36, popularly known as the ''Enigma Variations'', between October 1898 and February 1899. It is an orchestral work comprising fourteen variations on an original theme. Elgar ...

'' composed by Edward Elgar. *The number of favored rows in the Roman theater for members of the

equestrian order The ''equites'' (; literally "horse-" or "cavalrymen", though sometimes referred to as "knights" in English) constituted the second of the property-based classes of ancient Rome, ranking below the senatorial class. A member of the equestrian ...

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 s ...

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 ''Hallucigenia'' is a genus of Cambrian animal resembling worms, known from articulated fossils in Burgess Shale-type deposits in Canada and China, and from isolated spines around the world. The generic name reflects the type species' unusual ...

''. *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 reasons. *There are 14 British Overseas Territories 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 European mainland, continental mainland. It comprises England, Scotlan ...

. *The number of lines in a sonnet. * The Number 14 airship by

Alberto Santos Dumont Alberto Santos-Dumont ( Palmira, 20 July 1873 — Guarujá, 23 July 1932) was a Brazilian aeronaut, sportsman, inventor, and one of the few people to have contributed significantly to the early development of both lighter-than-air and heavier- ...

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 Calvados (, , ) is a brandy from Normandy in France, made from apples or pears, or from apples with pears. History In France Apple orchards and brewers are mentioned as far back as the 8th century by Charlemagne. The first known record of Nor ...

. * XIV is a

storage server In computing, a file server (or fileserver) is a computer attached to a network that provides a location for shared disk access, i.e. storage of computer files (such as text, image, sound, video) that can be accessed by the workstations that are ab ...

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 classic ...

. * A symbol of infinity in " The House of Asterion" (" 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 b ...

,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 are a phrase used by

white supremacists White supremacy or white supremacism is the belief that white people are superior to those of other races and thus should dominate them. The belief favors the maintenance and defense of any power and privilege held by white people. White s ...

. *

Nuestra Familia Nuestra Familia (Spanish for ''"our family"'') is a criminal organization of Mexican American (Chicano) prison gangs with origins in Northern California. While members of the Norteños gang are considered to be foot soldiers of Nuestra Familia, b ...

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 is visited by Stan Laurel in the movie '' County Hospital'' (1932). *In the epic fantasy series '' A Song of Ice and Fire'', 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 ad ...

'' by

Robert Jordan James Oliver Rigney Jr. (October 17, 1948 – September 16, 2007), better known by his pen name Robert Jordan," Robert Jordan" was the name of the protagonist in the 1940 Hemingway novel ''For Whom the Bell Tolls'', though this is not how the n ...

. * The number of years Edmond Dantes spent imprisoned in the Chateau d'If in Alexandre Dumas' '' The Count of Monte Cristo''. * 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