Compare 84 vs 91
| Property | 84 | 91 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 22 × 31 × 71 | 71 × 131 |
| Prime factorization | 2 × 2 × 3 × 7 | 7 × 13 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 | 1, 7, 13, 91 |
| Number of properties | 0 | 1 |
| Semiprimes | 31st | |
| Roman numberals | LXXXIV | XCI |
| Base 2 | 10101002 | 10110112 |
| Base 3 | 100103 | 101013 |
| Base 4 | 11104 | 11234 |
| Base 5 | 3145 | 3315 |
| Base 6 | 2206 | 2316 |
| Base 7 | 1507 | 1607 |
| Base 8 | 1248 | 1338 |
| Base 9 | 1039 | 1119 |
| Base 10 | 8410 | 9110 |
| Base 11 | 7711 | 8311 |
| Base 12 | 7012 | 7712 |
| Base 13 | 6613 | 7013 |
| Base 14 | 6014 | 6714 |
| Base 15 | 5915 | 6115 |
| Base 16 | 5416 | 5b16 |