Compare 142 vs 166
| Property | 142 | 166 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 711 | 21 × 831 |
| Prime factorization | 2 × 71 | 2 × 83 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 71, 142 | 1, 2, 83, 166 |
| Number of properties | 1 | 1 |
| Semiprimes | 47th | 55th |
| Roman numberals | CXLII | CLXVI |
| Base 2 | 100011102 | 101001102 |
| Base 3 | 120213 | 200113 |
| Base 4 | 20324 | 22124 |
| Base 5 | 10325 | 11315 |
| Base 6 | 3546 | 4346 |
| Base 7 | 2627 | 3257 |
| Base 8 | 2168 | 2468 |
| Base 9 | 1679 | 2049 |
| Base 10 | 14210 | 16610 |
| Base 11 | 11a11 | 14111 |
| Base 12 | ba12 | 11a12 |
| Base 13 | ac13 | ca13 |
| Base 14 | a214 | bc14 |
| Base 15 | 9715 | b115 |
| Base 16 | 8e16 | a616 |