Compare 166 vs 169
| Property | 166 | 169 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 831 | 132 |
| Prime factorization | 2 × 83 | 13 × 13 |
| Divisors count | 4 | 3 |
| Divisors | 1, 2, 83, 166 | 1, 13, 169 |
| Number of properties | 1 | 1 |
| Semiprimes | 55th | 56th |
| Roman numberals | CLXVI | CLXIX |
| Base 2 | 101001102 | 101010012 |
| Base 3 | 200113 | 200213 |
| Base 4 | 22124 | 22214 |
| Base 5 | 11315 | 11345 |
| Base 6 | 4346 | 4416 |
| Base 7 | 3257 | 3317 |
| Base 8 | 2468 | 2518 |
| Base 9 | 2049 | 2079 |
| Base 10 | 16610 | 16910 |
| Base 11 | 14111 | 14411 |
| Base 12 | 11a12 | 12112 |
| Base 13 | ca13 | 10013 |
| Base 14 | bc14 | c114 |
| Base 15 | b115 | b415 |
| Base 16 | a616 | a916 |