Compare 731 vs 745
| Property | 731 | 745 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 171 × 431 | 51 × 1491 |
| Prime factorization | 17 × 43 | 5 × 149 |
| Divisors count | 4 | 4 |
| Divisors | 1, 17, 43, 731 | 1, 5, 149, 745 |
| Number of properties | 1 | 1 |
| Semiprimes | 221st | 224th |
| Roman numberals | DCCXXXI | DCCXLV |
| Base 2 | 10110110112 | 10111010012 |
| Base 3 | 10000023 | 10001213 |
| Base 4 | 231234 | 232214 |
| Base 5 | 104115 | 104405 |
| Base 6 | 32156 | 32416 |
| Base 7 | 20637 | 21137 |
| Base 8 | 13338 | 13518 |
| Base 9 | 10029 | 10179 |
| Base 10 | 73110 | 74510 |
| Base 11 | 60511 | 61811 |
| Base 12 | 50b12 | 52112 |
| Base 13 | 44313 | 45413 |
| Base 14 | 3a314 | 3b314 |
| Base 15 | 33b15 | 34a15 |
| Base 16 | 2db16 | 2e916 |