Compare 81131 vs 81157
| Property | 81131 | 81157 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 811311 | 811571 |
| Prime factorization | 81131 | 81157 |
| Divisors count | 2 | 2 |
| Divisors | 1, 81131 | 1, 81157 |
| Number of properties | 4 | 6 |
| Harmonic primes | 2996th | 2997th |
| Isolated primes | 5897th | 5898th |
| Lucky primes | 1070th | |
| Primes | 7942nd | 7943rd |
| Pythagorean primes | 3958th | |
| Sexy primes (1st member) | 2065th | |
| Sophie germain primes | 987th | |
| Roman numberals | ||
| Base 2 | 100111100111010112 | 100111101000001012 |
| Base 3 | 110100212123 | 110100222113 |
| Base 4 | 1033032234 | 1033100114 |
| Base 5 | 100440115 | 100441125 |
| Base 6 | 14233356 | 14234216 |
| Base 7 | 4553517 | 4554167 |
| Base 8 | 2363538 | 2364058 |
| Base 9 | 1332559 | 1332849 |
| Base 10 | 8113110 | 8115710 |
| Base 11 | 55a5611 | 55a7a11 |
| Base 12 | 3ab4b12 | 3ab7112 |
| Base 13 | 2ac0b13 | 2ac2b13 |
| Base 14 | 217d114 | 2180d14 |
| Base 15 | 1908b15 | 190a715 |
| Base 16 | 13ceb16 | 13d0516 |