Compare 91 vs 98
| Property | 91 | 98 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 71 × 131 | 21 × 72 |
| Prime factorization | 7 × 13 | 2 × 7 × 7 |
| Divisors count | 4 | 6 |
| Divisors | 1, 7, 13, 91 | 1, 2, 7, 14, 49, 98 |
| Number of properties | 1 | 0 |
| Semiprimes | 31st | |
| Roman numberals | XCI | XCVIII |
| Base 2 | 10110112 | 11000102 |
| Base 3 | 101013 | 101223 |
| Base 4 | 11234 | 12024 |
| Base 5 | 3315 | 3435 |
| Base 6 | 2316 | 2426 |
| Base 7 | 1607 | 2007 |
| Base 8 | 1338 | 1428 |
| Base 9 | 1119 | 1189 |
| Base 10 | 9110 | 9810 |
| Base 11 | 8311 | 8a11 |
| Base 12 | 7712 | 8212 |
| Base 13 | 7013 | 7713 |
| Base 14 | 6714 | 7014 |
| Base 15 | 6115 | 6815 |
| Base 16 | 5b16 | 6216 |