Compare 65 vs 85
| Property | 65 | 85 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 131 | 51 × 171 |
| Prime factorization | 5 × 13 | 5 × 17 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 13, 65 | 1, 5, 17, 85 |
| Number of properties | 1 | 1 |
| Semiprimes | 23rd | 28th |
| Roman numberals | LXV | LXXXV |
| Base 2 | 10000012 | 10101012 |
| Base 3 | 21023 | 100113 |
| Base 4 | 10014 | 11114 |
| Base 5 | 2305 | 3205 |
| Base 6 | 1456 | 2216 |
| Base 7 | 1227 | 1517 |
| Base 8 | 1018 | 1258 |
| Base 9 | 729 | 1049 |
| Base 10 | 6510 | 8510 |
| Base 11 | 5a11 | 7811 |
| Base 12 | 5512 | 7112 |
| Base 13 | 5013 | 6713 |
| Base 14 | 4914 | 6114 |
| Base 15 | 4515 | 5a15 |
| Base 16 | 4116 | 5516 |