Compare 9907 vs 9931
| Property | 9907 | 9931 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 99071 | 99311 |
| Prime factorization | 9907 | 9931 |
| Divisors count | 2 | 2 |
| Divisors | 1, 9907 | 1, 9931 |
| Number of properties | 4 | 4 |
| Emirps | 238th | |
| Harmonic primes | 445th | |
| Isolated primes | 815th | |
| Long primes | 465th | |
| Primes | 1222nd | 1225th |
| Sexy primes (2nd member) | 409th | |
| Twin primes (2nd member) | 205th | |
| Roman numberals | ||
| Base 2 | 100110101100112 | 100110110010112 |
| Base 3 | 1111202213 | 1111212113 |
| Base 4 | 21223034 | 21230234 |
| Base 5 | 3041125 | 3042115 |
| Base 6 | 1135116 | 1135516 |
| Base 7 | 406127 | 406457 |
| Base 8 | 232638 | 233138 |
| Base 9 | 145279 | 145549 |
| Base 10 | 990710 | 993110 |
| Base 11 | 749711 | 750911 |
| Base 12 | 589712 | 58b712 |
| Base 13 | 468113 | 469c13 |
| Base 14 | 387914 | 389514 |
| Base 15 | 2e0715 | 2e2115 |
| Base 16 | 26b316 | 26cb16 |