odd, prime, palindrome · 313th positive integer
The number 313
313 is an odd prime number. It is the 313th positive integer.
Quick reference
| Prime factorization | 313 (prime) |
| Divisors | 1, 313 |
| Binary | 100111001 |
| Hexadecimal | 0x139 |
| Roman numeral | CCCXIII |
| Digit sum | 7 |
| Properties | odd, prime, palindrome |
Frequently asked
Is 313 a prime number?
Yes. 313 is prime — its only divisors are 1 and itself.
What are the factors of 313?
The factors (divisors) of 313 are 1, 313.
What is 313 in binary?
313 in binary is 100111001. In hexadecimal it's 139.
What is 313 as a Roman numeral?
313 in Roman numerals is CCCXIII.
What's the digit sum of 313?
Adding the digits of 313: 3 + 1 + 3 = 7.