Compare 751 vs 755
| Property | 751 | 755 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 7511 | 51 × 1511 |
| Prime factorization | 751 | 5 × 151 |
| Divisors count | 2 | 4 |
| Divisors | 1, 751 | 1, 5, 151, 755 |
| Number of properties | 7 | 1 |
| Additive primes | 70th | |
| Chen primes | 90th | |
| Emirps | 26th | |
| Isolated primes | 74th | |
| Primes | 133rd | |
| Semiprimes | 228th | |
| Sexy primes (1st member) | 63rd | |
| Ulam primes | 16th | |
| Roman numberals | DCCLI | DCCLV |
| Base 2 | 10111011112 | 10111100112 |
| Base 3 | 10002113 | 10002223 |
| Base 4 | 232334 | 233034 |
| Base 5 | 110015 | 110105 |
| Base 6 | 32516 | 32556 |
| Base 7 | 21227 | 21267 |
| Base 8 | 13578 | 13638 |
| Base 9 | 10249 | 10289 |
| Base 10 | 75110 | 75510 |
| Base 11 | 62311 | 62711 |
| Base 12 | 52712 | 52b12 |
| Base 13 | 45a13 | 46113 |
| Base 14 | 3b914 | 3bd14 |
| Base 15 | 35115 | 35515 |
| Base 16 | 2ef16 | 2f316 |