Compare 208 vs 209
| Property | 208 | 209 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 24 × 131 | 111 × 191 |
| Prime factorization | 2 × 2 × 2 × 2 × 13 | 11 × 19 |
| Divisors count | 10 | 4 |
| Divisors | 1, 2, 4, 8, 13, 16, 26, 52, 104, 208 | 1, 11, 19, 209 |
| Number of properties | 0 | 1 |
| Semiprimes | 68th | |
| Roman numberals | CCVIII | CCIX |
| Base 2 | 110100002 | 110100012 |
| Base 3 | 212013 | 212023 |
| Base 4 | 31004 | 31014 |
| Base 5 | 13135 | 13145 |
| Base 6 | 5446 | 5456 |
| Base 7 | 4157 | 4167 |
| Base 8 | 3208 | 3218 |
| Base 9 | 2519 | 2529 |
| Base 10 | 20810 | 20910 |
| Base 11 | 17a11 | 18011 |
| Base 12 | 15412 | 15512 |
| Base 13 | 13013 | 13113 |
| Base 14 | 10c14 | 10d14 |
| Base 15 | dd15 | de15 |
| Base 16 | d016 | d116 |