Compare 997 vs 1019
| Property | 997 | 1019 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9971 | 10191 |
| Prime factorization | 997 | 1019 |
| Divisors count | 2 | 2 |
| Divisors | 1, 997 | 1, 1019 |
| Number of properties | 6 | 9 |
| Additive primes | 91st | |
| Chen primes | 117th | |
| Isolated primes | 99th | |
| Left-truncatable primes | 54th | |
| Long primes | 61st | |
| Lucky primes | 43rd | |
| Primes | 168th | 171st |
| Pythagorean primes | 80th | |
| Safe primes | 26th | |
| Sexy primes (2nd member) | 74th | 75th |
| Solinas primes | 45th | |
| Sophie germain primes | 39th | |
| Twin primes (1st member) | 36th | |
| Roman numberals | CMXCVII | MXIX |
| Base 2 | 11111001012 | 11111110112 |
| Base 3 | 11002213 | 11012023 |
| Base 4 | 332114 | 333234 |
| Base 5 | 124425 | 130345 |
| Base 6 | 43416 | 44156 |
| Base 7 | 26237 | 26547 |
| Base 8 | 17458 | 17738 |
| Base 9 | 13279 | 13529 |
| Base 10 | 99710 | 101910 |
| Base 11 | 82711 | 84711 |
| Base 12 | 6b112 | 70b12 |
| Base 13 | 5b913 | 60513 |
| Base 14 | 51314 | 52b14 |
| Base 15 | 46715 | 47e15 |
| Base 16 | 3e516 | 3fb16 |