Compare 1491 vs 1497
| Property | 1491 | 1497 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 71 × 711 | 31 × 4991 |
| Prime factorization | 3 × 7 × 71 | 3 × 499 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 7, 21, 71, 213, 497, 1491 | 1, 3, 499, 1497 |
| Number of properties | 0 | 1 |
| Semiprimes | 436th | |
| Roman numberals | MCDXCI | MCDXCVII |
| Base 2 | 101110100112 | 101110110012 |
| Base 3 | 20010203 | 20011103 |
| Base 4 | 1131034 | 1131214 |
| Base 5 | 214315 | 214425 |
| Base 6 | 105236 | 105336 |
| Base 7 | 42307 | 42367 |
| Base 8 | 27238 | 27318 |
| Base 9 | 20369 | 20439 |
| Base 10 | 149110 | 149710 |
| Base 11 | 113611 | 114111 |
| Base 12 | a4312 | a4912 |
| Base 13 | 8a913 | 8b213 |
| Base 14 | 78714 | 78d14 |
| Base 15 | 69615 | 69c15 |
| Base 16 | 5d316 | 5d916 |