even, composite · 158th positive integer
The number 158
158 is an even composite number. It is the 158th positive integer.
Quick reference
| Prime factorization | 2 × 79 |
| Divisors | 1, 2, 79, 158 |
| Binary | 10011110 |
| Hexadecimal | 0x9E |
| Roman numeral | CLVIII |
| Digit sum | 14 |
| Properties | even, composite |
Frequently asked
Is 158 a prime number?
No. 158 is composite. Its prime factorization is 2 × 79.
What are the factors of 158?
The factors (divisors) of 158 are 1, 2, 79, 158.
What is 158 in binary?
158 in binary is 10011110. In hexadecimal it's 9E.
What is 158 as a Roman numeral?
158 in Roman numerals is CLVIII.
What's the digit sum of 158?
Adding the digits of 158: 1 + 5 + 8 = 14.