Compare 42 vs 57
| Property | 42 | 57 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 21 × 31 × 71 | 31 × 191 |
| Prime factorization | 2 × 3 × 7 | 3 × 19 |
| Divisors count | 8 | 4 |
| Divisors | 1, 2, 3, 6, 7, 14, 21, 42 | 1, 3, 19, 57 |
| Number of properties | 0 | 1 |
| Semiprimes | 20th | |
| Roman numberals | XLII | LVII |
| Base 2 | 1010102 | 1110012 |
| Base 3 | 11203 | 20103 |
| Base 4 | 2224 | 3214 |
| Base 5 | 1325 | 2125 |
| Base 6 | 1106 | 1336 |
| Base 7 | 607 | 1117 |
| Base 8 | 528 | 718 |
| Base 9 | 469 | 639 |
| Base 10 | 4210 | 5710 |
| Base 11 | 3911 | 5211 |
| Base 12 | 3612 | 4912 |
| Base 13 | 3313 | 4513 |
| Base 14 | 3014 | 4114 |
| Base 15 | 2c15 | 3c15 |
| Base 16 | 2a16 | 3916 |