Compare 85 vs 91
| Property | 85 | 91 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 171 | 71 × 131 |
| Prime factorization | 5 × 17 | 7 × 13 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 17, 85 | 1, 7, 13, 91 |
| Number of properties | 1 | 1 |
| Semiprimes | 28th | 31st |
| Roman numberals | LXXXV | XCI |
| Base 2 | 10101012 | 10110112 |
| Base 3 | 100113 | 101013 |
| Base 4 | 11114 | 11234 |
| Base 5 | 3205 | 3315 |
| Base 6 | 2216 | 2316 |
| Base 7 | 1517 | 1607 |
| Base 8 | 1258 | 1338 |
| Base 9 | 1049 | 1119 |
| Base 10 | 8510 | 9110 |
| Base 11 | 7811 | 8311 |
| Base 12 | 7112 | 7712 |
| Base 13 | 6713 | 7013 |
| Base 14 | 6114 | 6714 |
| Base 15 | 5a15 | 6115 |
| Base 16 | 5516 | 5b16 |