Compare 997 vs 1087
| Property | 997 | 1087 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9971 | 10871 |
| Prime factorization | 997 | 1087 |
| Divisors count | 2 | 2 |
| Divisors | 1, 997 | 1, 1087 |
| Number of properties | 6 | 11 |
| Cousin primes (1st member) | 43rd | |
| Good primes | 47th | |
| Isolated primes | 99th | 104th |
| Kynea primes | 5th | |
| Left-truncatable primes | 54th | |
| Long primes | 67th | |
| Lucky primes | 43rd | 47th |
| Primes | 168th | 181st |
| Prime triplets (1st member) | 31st | |
| Pythagorean primes | 80th | |
| Sexy primes (1st member) | 78th | |
| Sexy primes (2nd member) | 74th | |
| Solinas primes | 50th | |
| Super primes | 42nd | |
| Roman numberals | CMXCVII | MLXXXVII |
| Base 2 | 11111001012 | 100001111112 |
| Base 3 | 11002213 | 11110213 |
| Base 4 | 332114 | 1003334 |
| Base 5 | 124425 | 133225 |
| Base 6 | 43416 | 50116 |
| Base 7 | 26237 | 31127 |
| Base 8 | 17458 | 20778 |
| Base 9 | 13279 | 14379 |
| Base 10 | 99710 | 108710 |
| Base 11 | 82711 | 8a911 |
| Base 12 | 6b112 | 76712 |
| Base 13 | 5b913 | 65813 |
| Base 14 | 51314 | 57914 |
| Base 15 | 46715 | 4c715 |
| Base 16 | 3e516 | 43f16 |