odd, prime · 997th positive integer
The number 997
997 is an odd prime number. It is the 997th positive integer.
Quick reference
| Prime factorization | 997 (prime) |
| Divisors | 1, 997 |
| Binary | 1111100101 |
| Hexadecimal | 0x3E5 |
| Roman numeral | CMXCVII |
| Digit sum | 25 |
| Properties | odd, prime |
Frequently asked
Is 997 a prime number?
Yes. 997 is prime — its only divisors are 1 and itself.
What are the factors of 997?
The factors (divisors) of 997 are 1, 997.
What is 997 in binary?
997 in binary is 1111100101. In hexadecimal it's 3E5.
What is 997 as a Roman numeral?
997 in Roman numerals is CMXCVII.
What's the digit sum of 997?
Adding the digits of 997: 9 + 9 + 7 = 25.