even, composite · 258th positive integer
The number 258
258 is an even composite number. It is the 258th positive integer.
Quick reference
| Prime factorization | 2 × 3 × 43 |
| Divisors | 1, 2, 3, 6, 43, 86, 129, 258 |
| Binary | 100000010 |
| Hexadecimal | 0x102 |
| Roman numeral | CCLVIII |
| Digit sum | 15 |
| Properties | even, composite |
Frequently asked
Is 258 a prime number?
No. 258 is composite. Its prime factorization is 2 × 3 × 43.
What are the factors of 258?
The factors (divisors) of 258 are 1, 2, 3, 6, 43, 86, 129, 258.
What is 258 in binary?
258 in binary is 100000010. In hexadecimal it's 102.
What is 258 as a Roman numeral?
258 in Roman numerals is CCLVIII.
What's the digit sum of 258?
Adding the digits of 258: 2 + 5 + 8 = 15.