Compare 947 vs 997
| Property | 947 | 997 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 9471 | 9971 |
| Prime factorization | 947 | 997 |
| Divisors count | 2 | 2 |
| Divisors | 1, 947 | 1, 997 |
| Number of properties | 7 | 6 |
| Chen primes | 110th | |
| Isolated primes | 92nd | 99th |
| Left-truncatable primes | 50th | 54th |
| Lucky primes | 43rd | |
| Primes | 161st | 168th |
| Pythagorean primes | 80th | |
| Sexy primes (1st member) | 71st | |
| Sexy primes (2nd member) | 70th | 74th |
| Sexy prime triplets (2nd member) | 27th | |
| Roman numberals | CMXLVII | CMXCVII |
| Base 2 | 11101100112 | 11111001012 |
| Base 3 | 10220023 | 11002213 |
| Base 4 | 323034 | 332114 |
| Base 5 | 122425 | 124425 |
| Base 6 | 42156 | 43416 |
| Base 7 | 25227 | 26237 |
| Base 8 | 16638 | 17458 |
| Base 9 | 12629 | 13279 |
| Base 10 | 94710 | 99710 |
| Base 11 | 79111 | 82711 |
| Base 12 | 66b12 | 6b112 |
| Base 13 | 57b13 | 5b913 |
| Base 14 | 4b914 | 51314 |
| Base 15 | 43215 | 46715 |
| Base 16 | 3b316 | 3e516 |