Compare 249 vs 261
| Property | 249 | 261 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 31 × 831 | 32 × 291 |
| Prime factorization | 3 × 83 | 3 × 3 × 29 |
| Divisors count | 4 | 6 |
| Divisors | 1, 3, 83, 249 | 1, 3, 9, 29, 87, 261 |
| Number of properties | 1 | 0 |
| Semiprimes | 80th | |
| Roman numberals | CCXLIX | CCLXI |
| Base 2 | 111110012 | 1000001012 |
| Base 3 | 1000203 | 1002003 |
| Base 4 | 33214 | 100114 |
| Base 5 | 14445 | 20215 |
| Base 6 | 10536 | 11136 |
| Base 7 | 5047 | 5227 |
| Base 8 | 3718 | 4058 |
| Base 9 | 3069 | 3209 |
| Base 10 | 24910 | 26110 |
| Base 11 | 20711 | 21811 |
| Base 12 | 18912 | 19912 |
| Base 13 | 16213 | 17113 |
| Base 14 | 13b14 | 14914 |
| Base 15 | 11915 | 12615 |
| Base 16 | f916 | 10516 |