Compare 988 vs 997
| Property | 988 | 997 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 131 × 191 | 9971 |
| Prime factorization | 2 × 2 × 13 × 19 | 997 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988 | 1, 997 |
| Number of properties | 0 | 6 |
| Isolated primes | 99th | |
| Left-truncatable primes | 54th | |
| Lucky primes | 43rd | |
| Primes | 168th | |
| Pythagorean primes | 80th | |
| Sexy primes (2nd member) | 74th | |
| Roman numberals | CMLXXXVIII | CMXCVII |
| Base 2 | 11110111002 | 11111001012 |
| Base 3 | 11001213 | 11002213 |
| Base 4 | 331304 | 332114 |
| Base 5 | 124235 | 124425 |
| Base 6 | 43246 | 43416 |
| Base 7 | 26117 | 26237 |
| Base 8 | 17348 | 17458 |
| Base 9 | 13179 | 13279 |
| Base 10 | 98810 | 99710 |
| Base 11 | 81911 | 82711 |
| Base 12 | 6a412 | 6b112 |
| Base 13 | 5b013 | 5b913 |
| Base 14 | 50814 | 51314 |
| Base 15 | 45d15 | 46715 |
| Base 16 | 3dc16 | 3e516 |