Compare 731 vs 743
| Property | 731 | 743 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 171 × 431 | 7431 |
| Prime factorization | 17 × 43 | 743 |
| Divisors count | 4 | 2 |
| Divisors | 1, 17, 43, 731 | 1, 743 |
| Number of properties | 1 | 8 |
| Chen primes | 89th | |
| Cousin primes (2nd member) | 31st | |
| Emirps | 25th | |
| Isolated primes | 73rd | |
| Left-truncatable primes | 43rd | |
| Long primes | 48th | |
| Primes | 132nd | |
| Semiprimes | 221st | |
| Sophie germain primes | 33rd | |
| Roman numberals | DCCXXXI | DCCXLIII |
| Base 2 | 10110110112 | 10111001112 |
| Base 3 | 10000023 | 10001123 |
| Base 4 | 231234 | 232134 |
| Base 5 | 104115 | 104335 |
| Base 6 | 32156 | 32356 |
| Base 7 | 20637 | 21117 |
| Base 8 | 13338 | 13478 |
| Base 9 | 10029 | 10159 |
| Base 10 | 73110 | 74310 |
| Base 11 | 60511 | 61611 |
| Base 12 | 50b12 | 51b12 |
| Base 13 | 44313 | 45213 |
| Base 14 | 3a314 | 3b114 |
| Base 15 | 33b15 | 34815 |
| Base 16 | 2db16 | 2e716 |