Compare 166 vs 206
| Property | 166 | 206 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 831 | 21 × 1031 |
| Prime factorization | 2 × 83 | 2 × 103 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 83, 166 | 1, 2, 103, 206 |
| Number of properties | 1 | 1 |
| Semiprimes | 55th | 67th |
| Roman numberals | CLXVI | CCVI |
| Base 2 | 101001102 | 110011102 |
| Base 3 | 200113 | 211223 |
| Base 4 | 22124 | 30324 |
| Base 5 | 11315 | 13115 |
| Base 6 | 4346 | 5426 |
| Base 7 | 3257 | 4137 |
| Base 8 | 2468 | 3168 |
| Base 9 | 2049 | 2489 |
| Base 10 | 16610 | 20610 |
| Base 11 | 14111 | 17811 |
| Base 12 | 11a12 | 15212 |
| Base 13 | ca13 | 12b13 |
| Base 14 | bc14 | 10a14 |
| Base 15 | b115 | db15 |
| Base 16 | a616 | ce16 |