Compare 249 vs 278
| Property | 249 | 278 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 831 | 21 × 1391 |
| Prime factorization | 3 × 83 | 2 × 139 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 83, 249 | 1, 2, 139, 278 |
| Number of properties | 1 | 1 |
| Semiprimes | 80th | 88th |
| Roman numberals | CCXLIX | CCLXXVIII |
| Base 2 | 111110012 | 1000101102 |
| Base 3 | 1000203 | 1010223 |
| Base 4 | 33214 | 101124 |
| Base 5 | 14445 | 21035 |
| Base 6 | 10536 | 11426 |
| Base 7 | 5047 | 5457 |
| Base 8 | 3718 | 4268 |
| Base 9 | 3069 | 3389 |
| Base 10 | 24910 | 27810 |
| Base 11 | 20711 | 23311 |
| Base 12 | 18912 | 1b212 |
| Base 13 | 16213 | 18513 |
| Base 14 | 13b14 | 15c14 |
| Base 15 | 11915 | 13815 |
| Base 16 | f916 | 11616 |