Compare 21 vs 48
| Property | 21 | 48 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 5 |
| Prime factorization | 31 × 71 | 24 × 31 |
| Prime factorization | 3 × 7 | 2 × 2 × 2 × 2 × 3 |
| Divisors count | 4 | 10 |
| Divisors | 1, 3, 7, 21 | 1, 2, 3, 4, 6, 8, 12, 16, 24, 48 |
| Number of properties | 1 | 0 |
| Semiprimes | 7th | |
| Roman numberals | XXI | XLVIII |
| Base 2 | 101012 | 1100002 |
| Base 3 | 2103 | 12103 |
| Base 4 | 1114 | 3004 |
| Base 5 | 415 | 1435 |
| Base 6 | 336 | 1206 |
| Base 7 | 307 | 667 |
| Base 8 | 258 | 608 |
| Base 9 | 239 | 539 |
| Base 10 | 2110 | 4810 |
| Base 11 | 1a11 | 4411 |
| Base 12 | 1912 | 4012 |
| Base 13 | 1813 | 3913 |
| Base 14 | 1714 | 3614 |
| Base 15 | 1615 | 3315 |
| Base 16 | 1516 | 3016 |