odd, prime · 557th positive integer
The number 557
557 is an odd prime number. It is the 557th positive integer.
Quick reference
| Prime factorization | 557 (prime) |
| Divisors | 1, 557 |
| Binary | 1000101101 |
| Hexadecimal | 0x22D |
| Roman numeral | DLVII |
| Digit sum | 17 |
| Properties | odd, prime |
Frequently asked
Is 557 a prime number?
Yes. 557 is prime — its only divisors are 1 and itself.
What are the factors of 557?
The factors (divisors) of 557 are 1, 557.
What is 557 in binary?
557 in binary is 1000101101. In hexadecimal it's 22D.
What is 557 as a Roman numeral?
557 in Roman numerals is DLVII.
What's the digit sum of 557?
Adding the digits of 557: 5 + 5 + 7 = 17.