Compare 997 vs 1008
| Property | 997 | 1008 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 7 |
| Prime factorization | 9971 | 24 × 32 × 71 |
| Prime factorization | 997 | 2 × 2 × 2 × 2 × 3 × 3 × 7 |
| Divisors count | 2 | 30 |
| Divisors | 1, 997 | 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008 |
| Number of properties | 6 | 0 |
| Isolated primes | 99th | |
| Left-truncatable primes | 54th | |
| Lucky primes | 43rd | |
| Primes | 168th | |
| Pythagorean primes | 80th | |
| Sexy primes (2nd member) | 74th | |
| Roman numberals | CMXCVII | MVIII |
| Base 2 | 11111001012 | 11111100002 |
| Base 3 | 11002213 | 11011003 |
| Base 4 | 332114 | 333004 |
| Base 5 | 124425 | 130135 |
| Base 6 | 43416 | 44006 |
| Base 7 | 26237 | 26407 |
| Base 8 | 17458 | 17608 |
| Base 9 | 13279 | 13409 |
| Base 10 | 99710 | 100810 |
| Base 11 | 82711 | 83711 |
| Base 12 | 6b112 | 70012 |
| Base 13 | 5b913 | 5c713 |
| Base 14 | 51314 | 52014 |
| Base 15 | 46715 | 47315 |
| Base 16 | 3e516 | 3f016 |