Compare 947 vs 951
| Property | 947 | 951 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 9471 | 31 × 3171 |
| Prime factorization | 947 | 3 × 317 |
| Divisors count | 2 | 4 |
| Divisors | 1, 947 | 1, 3, 317, 951 |
| Number of properties | 7 | 1 |
| Chen primes | 110th | |
| Isolated primes | 92nd | |
| Left-truncatable primes | 50th | |
| Primes | 161st | |
| Semiprimes | 285th | |
| Sexy primes (1st member) | 71st | |
| Sexy primes (2nd member) | 70th | |
| Sexy prime triplets (2nd member) | 27th | |
| Roman numberals | CMXLVII | CMLI |
| Base 2 | 11101100112 | 11101101112 |
| Base 3 | 10220023 | 10220203 |
| Base 4 | 323034 | 323134 |
| Base 5 | 122425 | 123015 |
| Base 6 | 42156 | 42236 |
| Base 7 | 25227 | 25267 |
| Base 8 | 16638 | 16678 |
| Base 9 | 12629 | 12669 |
| Base 10 | 94710 | 95110 |
| Base 11 | 79111 | 79511 |
| Base 12 | 66b12 | 67312 |
| Base 13 | 57b13 | 58213 |
| Base 14 | 4b914 | 4bd14 |
| Base 15 | 43215 | 43615 |
| Base 16 | 3b316 | 3b716 |