Compare 749 vs 751
| Property | 749 | 751 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 1071 | 7511 |
| Prime factorization | 7 × 107 | 751 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 107, 749 | 1, 751 |
| Number of properties | 1 | 7 |
| Additive primes | 70th | |
| Chen primes | 90th | |
| Emirps | 26th | |
| Isolated primes | 74th | |
| Primes | 133rd | |
| Semiprimes | 226th | |
| Sexy primes (1st member) | 63rd | |
| Ulam primes | 16th | |
| Roman numberals | DCCXLIX | DCCLI |
| Base 2 | 10111011012 | 10111011112 |
| Base 3 | 10002023 | 10002113 |
| Base 4 | 232314 | 232334 |
| Base 5 | 104445 | 110015 |
| Base 6 | 32456 | 32516 |
| Base 7 | 21207 | 21227 |
| Base 8 | 13558 | 13578 |
| Base 9 | 10229 | 10249 |
| Base 10 | 74910 | 75110 |
| Base 11 | 62111 | 62311 |
| Base 12 | 52512 | 52712 |
| Base 13 | 45813 | 45a13 |
| Base 14 | 3b714 | 3b914 |
| Base 15 | 34e15 | 35115 |
| Base 16 | 2ed16 | 2ef16 |