Compare 1491 vs 1501
| Property | 1491 | 1501 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 71 × 711 | 191 × 791 |
| Prime factorization | 3 × 7 × 71 | 19 × 79 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 7, 21, 71, 213, 497, 1491 | 1, 19, 79, 1501 |
| Number of properties | 0 | 1 |
| Semiprimes | 437th | |
| Roman numberals | MCDXCI | MDI |
| Base 2 | 101110100112 | 101110111012 |
| Base 3 | 20010203 | 20011213 |
| Base 4 | 1131034 | 1131314 |
| Base 5 | 214315 | 220015 |
| Base 6 | 105236 | 105416 |
| Base 7 | 42307 | 42437 |
| Base 8 | 27238 | 27358 |
| Base 9 | 20369 | 20479 |
| Base 10 | 149110 | 150110 |
| Base 11 | 113611 | 114511 |
| Base 12 | a4312 | a5112 |
| Base 13 | 8a913 | 8b613 |
| Base 14 | 78714 | 79314 |
| Base 15 | 69615 | 6a115 |
| Base 16 | 5d316 | 5dd16 |