Compare 9 vs 10
| Property | 9 | 10 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 32 | 21 × 51 |
| Prime factorization | 3 × 3 | 2 × 5 |
| Divisors count | 3 | 4 |
| Divisors | 1, 3, 9 | 1, 2, 5, 10 |
| Number of properties | 1 | 1 |
| Semiprimes | 3rd | 4th |
| Roman numberals | IX | X |
| Base 2 | 10012 | 10102 |
| Base 3 | 1003 | 1013 |
| Base 4 | 214 | 224 |
| Base 5 | 145 | 205 |
| Base 6 | 136 | 146 |
| Base 7 | 127 | 137 |
| Base 8 | 118 | 128 |
| Base 9 | 109 | 119 |
| Base 10 | 910 | 1010 |
| Base 11 | 911 | a11 |
| Base 12 | 912 | a12 |
| Base 13 | 913 | a13 |
| Base 14 | 914 | a14 |
| Base 15 | 915 | a15 |
| Base 16 | 916 | a16 |