Compare 249 vs 255
| Property | 249 | 255 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 31 × 831 | 31 × 51 × 171 |
| Prime factorization | 3 × 83 | 3 × 5 × 17 |
| Divisors count | 4 | 8 |
| Divisors | 1, 3, 83, 249 | 1, 3, 5, 15, 17, 51, 85, 255 |
| Number of properties | 1 | 0 |
| Semiprimes | 80th | |
| Roman numberals | CCXLIX | CCLV |
| Base 2 | 111110012 | 111111112 |
| Base 3 | 1000203 | 1001103 |
| Base 4 | 33214 | 33334 |
| Base 5 | 14445 | 20105 |
| Base 6 | 10536 | 11036 |
| Base 7 | 5047 | 5137 |
| Base 8 | 3718 | 3778 |
| Base 9 | 3069 | 3139 |
| Base 10 | 24910 | 25510 |
| Base 11 | 20711 | 21211 |
| Base 12 | 18912 | 19312 |
| Base 13 | 16213 | 16813 |
| Base 14 | 13b14 | 14314 |
| Base 15 | 11915 | 12015 |
| Base 16 | f916 | ff16 |