Compare 166 vs 172
| Property | 166 | 172 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 21 × 831 | 22 × 431 |
| Prime factorization | 2 × 83 | 2 × 2 × 43 |
| Divisors count | 4 | 6 |
| Divisors | 1, 2, 83, 166 | 1, 2, 4, 43, 86, 172 |
| Number of properties | 1 | 0 |
| Semiprimes | 55th | |
| Roman numberals | CLXVI | CLXXII |
| Base 2 | 101001102 | 101011002 |
| Base 3 | 200113 | 201013 |
| Base 4 | 22124 | 22304 |
| Base 5 | 11315 | 11425 |
| Base 6 | 4346 | 4446 |
| Base 7 | 3257 | 3347 |
| Base 8 | 2468 | 2548 |
| Base 9 | 2049 | 2119 |
| Base 10 | 16610 | 17210 |
| Base 11 | 14111 | 14711 |
| Base 12 | 11a12 | 12412 |
| Base 13 | ca13 | 10313 |
| Base 14 | bc14 | c414 |
| Base 15 | b115 | b715 |
| Base 16 | a616 | ac16 |