Compare 10 vs 15
| Property | 10 | 15 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 51 | 31 × 51 |
| Prime factorization | 2 × 5 | 3 × 5 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 5, 10 | 1, 3, 5, 15 |
| Number of properties | 1 | 1 |
| Semiprimes | 4th | 6th |
| Roman numberals | X | XV |
| Base 2 | 10102 | 11112 |
| Base 3 | 1013 | 1203 |
| Base 4 | 224 | 334 |
| Base 5 | 205 | 305 |
| Base 6 | 146 | 236 |
| Base 7 | 137 | 217 |
| Base 8 | 128 | 178 |
| Base 9 | 119 | 169 |
| Base 10 | 1010 | 1510 |
| Base 11 | a11 | 1411 |
| Base 12 | a12 | 1312 |
| Base 13 | a13 | 1213 |
| Base 14 | a14 | 1114 |
| Base 15 | a15 | 1015 |
| Base 16 | a16 | f16 |