Compare 20 vs 42
| Property | 20 | 42 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 3 | 3 |
| Prime factorization | 22 × 51 | 21 × 31 × 71 |
| Prime factorization | 2 × 2 × 5 | 2 × 3 × 7 |
| Divisors count | 6 | 8 |
| Divisors | 1, 2, 4, 5, 10, 20 | 1, 2, 3, 6, 7, 14, 21, 42 |
| Number of properties | 0 | 0 |
| Roman numberals | XX | XLII |
| Base 2 | 101002 | 1010102 |
| Base 3 | 2023 | 11203 |
| Base 4 | 1104 | 2224 |
| Base 5 | 405 | 1325 |
| Base 6 | 326 | 1106 |
| Base 7 | 267 | 607 |
| Base 8 | 248 | 528 |
| Base 9 | 229 | 469 |
| Base 10 | 2010 | 4210 |
| Base 11 | 1911 | 3911 |
| Base 12 | 1812 | 3612 |
| Base 13 | 1713 | 3313 |
| Base 14 | 1614 | 3014 |
| Base 15 | 1515 | 2c15 |
| Base 16 | 1416 | 2a16 |