Compare 8161 vs 8521
| Property | 8161 | 8521 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 81611 | 85211 |
| Prime factorization | 8161 | 8521 |
| Divisors count | 2 | 2 |
| Divisors | 1, 8161 | 1, 8521 |
| Number of properties | 7 | 6 |
| Good primes | 151st | 157th |
| Happy primes | 179th | |
| Isolated primes | 671st | 699th |
| Lucky primes | 185th | |
| Primes | 1024th | 1062nd |
| Pythagorean primes | 509th | 528th |
| Sexy primes (1st member) | 351st | 361st |
| Solinas primes | 75th | |
| Roman numberals | ||
| Base 2 | 11111111000012 | 100001010010012 |
| Base 3 | 1020120213 | 1022001213 |
| Base 4 | 13332014 | 20110214 |
| Base 5 | 2301215 | 2330415 |
| Base 6 | 1014416 | 1032416 |
| Base 7 | 325367 | 335627 |
| Base 8 | 177418 | 205118 |
| Base 9 | 121679 | 126179 |
| Base 10 | 816110 | 852110 |
| Base 11 | 614a11 | 644711 |
| Base 12 | 488112 | 4b2112 |
| Base 13 | 393a13 | 3b5613 |
| Base 14 | 2d8d14 | 316914 |
| Base 15 | 264115 | 27d115 |
| Base 16 | 1fe116 | 214916 |