Compare 1365 vs 1366
| Property | 1365 | 1366 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 31 × 51 × 71 × 131 | 21 × 6831 |
| Prime factorization | 3 × 5 × 7 × 13 | 2 × 683 |
| Divisors count | 16 | 4 |
| Divisors | 1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365 | 1, 2, 683, 1366 |
| Number of properties | 0 | 1 |
| Semiprimes | 403rd | |
| Roman numberals | MCCCLXV | MCCCLXVI |
| Base 2 | 101010101012 | 101010101102 |
| Base 3 | 12121203 | 12121213 |
| Base 4 | 1111114 | 1111124 |
| Base 5 | 204305 | 204315 |
| Base 6 | 101536 | 101546 |
| Base 7 | 36607 | 36617 |
| Base 8 | 25258 | 25268 |
| Base 9 | 17769 | 17779 |
| Base 10 | 136510 | 136610 |
| Base 11 | 103111 | 103211 |
| Base 12 | 95912 | 95a12 |
| Base 13 | 81013 | 81113 |
| Base 14 | 6d714 | 6d814 |
| Base 15 | 61015 | 61115 |
| Base 16 | 55516 | 55616 |