Compare 129 vs 166
| Property | 129 | 166 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 431 | 21 × 831 |
| Prime factorization | 3 × 43 | 2 × 83 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 43, 129 | 1, 2, 83, 166 |
| Number of properties | 1 | 1 |
| Semiprimes | 43rd | 55th |
| Roman numberals | CXXIX | CLXVI |
| Base 2 | 100000012 | 101001102 |
| Base 3 | 112103 | 200113 |
| Base 4 | 20014 | 22124 |
| Base 5 | 10045 | 11315 |
| Base 6 | 3336 | 4346 |
| Base 7 | 2437 | 3257 |
| Base 8 | 2018 | 2468 |
| Base 9 | 1539 | 2049 |
| Base 10 | 12910 | 16610 |
| Base 11 | 10811 | 14111 |
| Base 12 | a912 | 11a12 |
| Base 13 | 9c13 | ca13 |
| Base 14 | 9314 | bc14 |
| Base 15 | 8915 | b115 |
| Base 16 | 8116 | a616 |