Compare 997 vs 997
| Property | 997 | 997 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9971 | 9971 |
| Prime factorization | 997 | 997 |
| Divisors count | 2 | 2 |
| Divisors | 1, 997 | 1, 997 |
| Number of properties | 6 | 6 |
| Isolated primes | 99th | 99th |
| Left-truncatable primes | 54th | 54th |
| Lucky primes | 43rd | 43rd |
| Primes | 168th | 168th |
| Pythagorean primes | 80th | 80th |
| Sexy primes (2nd member) | 74th | 74th |
| Roman numberals | CMXCVII | CMXCVII |
| Base 2 | 11111001012 | 11111001012 |
| Base 3 | 11002213 | 11002213 |
| Base 4 | 332114 | 332114 |
| Base 5 | 124425 | 124425 |
| Base 6 | 43416 | 43416 |
| Base 7 | 26237 | 26237 |
| Base 8 | 17458 | 17458 |
| Base 9 | 13279 | 13279 |
| Base 10 | 99710 | 99710 |
| Base 11 | 82711 | 82711 |
| Base 12 | 6b112 | 6b112 |
| Base 13 | 5b913 | 5b913 |
| Base 14 | 51314 | 51314 |
| Base 15 | 46715 | 46715 |
| Base 16 | 3e516 | 3e516 |