Compare 745 vs 751
| Property | 745 | 751 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 1491 | 7511 |
| Prime factorization | 5 × 149 | 751 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 149, 745 | 1, 751 |
| Number of properties | 1 | 7 |
| Additive primes | 70th | |
| Chen primes | 90th | |
| Emirps | 26th | |
| Isolated primes | 74th | |
| Primes | 133rd | |
| Semiprimes | 224th | |
| Sexy primes (1st member) | 63rd | |
| Ulam primes | 16th | |
| Roman numberals | DCCXLV | DCCLI |
| Base 2 | 10111010012 | 10111011112 |
| Base 3 | 10001213 | 10002113 |
| Base 4 | 232214 | 232334 |
| Base 5 | 104405 | 110015 |
| Base 6 | 32416 | 32516 |
| Base 7 | 21137 | 21227 |
| Base 8 | 13518 | 13578 |
| Base 9 | 10179 | 10249 |
| Base 10 | 74510 | 75110 |
| Base 11 | 61811 | 62311 |
| Base 12 | 52112 | 52712 |
| Base 13 | 45413 | 45a13 |
| Base 14 | 3b314 | 3b914 |
| Base 15 | 34a15 | 35115 |
| Base 16 | 2e916 | 2ef16 |