Compare 51 vs 69
| Property | 51 | 69 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 171 | 31 × 231 |
| Prime factorization | 3 × 17 | 3 × 23 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 17, 51 | 1, 3, 23, 69 |
| Number of properties | 1 | 1 |
| Semiprimes | 18th | 24th |
| Roman numberals | LI | LXIX |
| Base 2 | 1100112 | 10001012 |
| Base 3 | 12203 | 21203 |
| Base 4 | 3034 | 10114 |
| Base 5 | 2015 | 2345 |
| Base 6 | 1236 | 1536 |
| Base 7 | 1027 | 1267 |
| Base 8 | 638 | 1058 |
| Base 9 | 569 | 769 |
| Base 10 | 5110 | 6910 |
| Base 11 | 4711 | 6311 |
| Base 12 | 4312 | 5912 |
| Base 13 | 3c13 | 5413 |
| Base 14 | 3914 | 4d14 |
| Base 15 | 3615 | 4915 |
| Base 16 | 3316 | 4516 |