odd, composite · 159th positive integer
The number 159
159 is an odd composite number. It is the 159th positive integer.
Quick reference
| Prime factorization | 3 × 53 |
| Divisors | 1, 3, 53, 159 |
| Binary | 10011111 |
| Hexadecimal | 0x9F |
| Roman numeral | CLIX |
| Digit sum | 15 |
| Properties | odd, composite |
Frequently asked
Is 159 a prime number?
No. 159 is composite. Its prime factorization is 3 × 53.
What are the factors of 159?
The factors (divisors) of 159 are 1, 3, 53, 159.
What is 159 in binary?
159 in binary is 10011111. In hexadecimal it's 9F.
What is 159 as a Roman numeral?
159 in Roman numerals is CLIX.
What's the digit sum of 159?
Adding the digits of 159: 1 + 5 + 9 = 15.