313 (number)
313 is the natural number following 312 and preceding 314.
In mathematics
313 is:- a twin prime with 311
- a centered square number
- a full reptend prime
- a Pythagorean prime
- a regular prime
- a palindromic prime in both decimal and binary.
- a truncatable prime
- a weakly prime in base 5
- a happy number
- an Armstrong number - in base 4
- an index of a prime Lucas number.
- a palindromic number in base 2
In religion
- The number of times the word pray appears in the King James Bible.
- The number of soldiers that Muhammad had with him in the first battle fought by the Muslims, the Battle of Badr.