Compare 123 vs 142
| Property | 123 | 142 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 411 | 21 × 711 |
| Prime factorization | 3 × 41 | 2 × 71 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 41, 123 | 1, 2, 71, 142 |
| Number of properties | 1 | 1 |
| Semiprimes | 42nd | 47th |
| Roman numberals | CXXIII | CXLII |
| Base 2 | 11110112 | 100011102 |
| Base 3 | 111203 | 120213 |
| Base 4 | 13234 | 20324 |
| Base 5 | 4435 | 10325 |
| Base 6 | 3236 | 3546 |
| Base 7 | 2347 | 2627 |
| Base 8 | 1738 | 2168 |
| Base 9 | 1469 | 1679 |
| Base 10 | 12310 | 14210 |
| Base 11 | 10211 | 11a11 |
| Base 12 | a312 | ba12 |
| Base 13 | 9613 | ac13 |
| Base 14 | 8b14 | a214 |
| Base 15 | 8315 | 9715 |
| Base 16 | 7b16 | 8e16 |