Compare 491 vs 743
| Property | 491 | 743 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 4911 | 7431 |
| Prime factorization | 491 | 743 |
| Divisors count | 2 | 2 |
| Divisors | 1, 491 | 1, 743 |
| Number of properties | 7 | 8 |
| Chen primes | 66th | 89th |
| Cousin primes (2nd member) | 26th | 31st |
| Emirps | 25th | |
| Harmonic primes | 38th | |
| Isolated primes | 47th | 73rd |
| Left-truncatable primes | 43rd | |
| Long primes | 34th | 48th |
| Primes | 94th | 132nd |
| Sophie germain primes | 25th | 33rd |
| Roman numberals | CDXCI | DCCXLIII |
| Base 2 | 1111010112 | 10111001112 |
| Base 3 | 2000123 | 10001123 |
| Base 4 | 132234 | 232134 |
| Base 5 | 34315 | 104335 |
| Base 6 | 21356 | 32356 |
| Base 7 | 13017 | 21117 |
| Base 8 | 7538 | 13478 |
| Base 9 | 6059 | 10159 |
| Base 10 | 49110 | 74310 |
| Base 11 | 40711 | 61611 |
| Base 12 | 34b12 | 51b12 |
| Base 13 | 2ba13 | 45213 |
| Base 14 | 27114 | 3b114 |
| Base 15 | 22b15 | 34815 |
| Base 16 | 1eb16 | 2e716 |