313 (three hundred ndthirteen) is the

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 312 and preceding

314 __NOTOC__ Year 314 ( CCCXIV) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Rufius and Annianus (or, less frequently, year 1067 '' ...

In mathematics

313 is: *a

prime number A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways ...

twin prime A twin prime is a prime number that is either 2 less or 2 more than another prime number—for example, either member of the twin prime pair (41, 43). In other words, a twin prime is a prime that has a prime gap of two. Sometimes the term ''twin p ...

with 311 *a

centered square number In elementary number theory, a centered square number is a centered figurate number that gives the number of dots in a square with a dot in the center and all other dots surrounding the center dot in successive square layers. That is, each cen ...

*a full reptend prime (and the smallest number which is a full reptend prime in base 10 but not in base 2 to 9) *a

Pythagorean prime A Pythagorean prime is a prime number of the Pythagorean primes are exactly the odd prime numbers that are the sum of two squares; this characterization is Fermat's theorem on sums of two squares. Equivalently, by the Pythagorean theorem, they ...

regular prime In number theory, a regular prime is a special kind of prime number, defined by Ernst Kummer in 1850 to prove certain cases of Fermat's Last Theorem. Regular primes may be defined via the divisibility of either class numbers or of Bernoulli nu ...

*a palindromic prime in both decimal and

binary Binary may refer to: Science and technology Mathematics * Binary number, a representation of numbers using only two digits (0 and 1) * Binary function, a function that takes two arguments * Binary operation, a mathematical operation that ta ...

. *a truncatable prime *a weakly prime in base 5 *a

happy number In number theory, a happy number is a number which eventually reaches 1 when replaced by the sum of the square of each digit. For instance, 13 is a happy number because 1^2+3^2=10, and 1^2+0^2=1. On the other hand, 4 is not a happy number because ...

*an Armstrong number - in base 4 ( 3×4² + 1×4¹ + 3×4⁰ = 3³ + 1³ + 3³ ) *an index of a prime Lucas number.

In religion

* The number of soldiers that

Muhammad Muhammad ( ar, مُحَمَّد; 570 – 8 June 632 CE) was an Arab religious, social, and political leader and the founder of Islam. According to Islamic doctrine, he was a prophet divinely inspired to preach and confirm the mo ...

had with him in the first battle fought by the Muslims, the Battle of Badr. * In

Twelver Shia Islam Twelver Shīʿīsm ( ar, ٱثْنَا عَشَرِيَّة; '), also known as Imāmīyyah ( ar, إِمَامِيَّة), is the largest branch of Shīʿa Islam, comprising about 85 percent of all Shīʿa Muslims. The term ''Twelver'' refers t ...

, 313 is the number of soldiers or generals that will be in the army of the 12th "Imam of time" (

Mahdi The Mahdi ( ar, ٱلْمَهْدِيّ, al-Mahdī, lit=the Guided) is a messianic figure in Islamic eschatology who is believed to appear at the end of times to rid the world of evil and injustice. He is said to be a descendant of Muhammad w ...

In other fields

*The number 313 is the U.S. telephone area code for the city of

Detroit Detroit ( , ; , ) is the largest city in the U.S. state of Michigan. It is also the largest U.S. city on the United States–Canada border, and the seat of government of Wayne County. The City of Detroit had a population of 639,111 at t ...

and nearby locales. *Frame 313 of the

Zapruder film The Zapruder film is a silent 8mm color motion picture sequence shot by Abraham Zapruder with a Bell & Howell home-movie camera, as United States President John F. Kennedy's motorcade passed through Dealey Plaza in Dallas, Texas, on November ...

shows the moment of impact for the bullet that killed President John F. Kennedy. * Donald Duck's car plate bears the number 313. *Flight 313 was a 2014 thriller movie about airline cover up. *The sixth track of the album Get Some (album) by

Snot (band) Snot is an American nu metal band from Santa Barbara, California. Formed in 1995, the band released their only studio album '' Get Some'' with founding vocalist Lynn Strait in 1997 and disbanded after his death in 1998. In 2008, the lineup of ...

is called 313. *The fifth track of the album Infinite (album) by Eminem is called 313.

References

Integers {{Num-stub

In mathematics

In religion

In other fields

See also

References