Compare 517 vs 523
| Property | 517 | 523 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 111 × 471 | 5231 |
| Prime factorization | 11 × 47 | 523 |
| Divisors count | 4 | 2 |
| Divisors | 1, 11, 47, 517 | 1, 523 |
| Number of properties | 1 | 3 |
| Left-truncatable primes | 34th | |
| Primes | 99th | |
| Semiprimes | 160th | |
| Twin primes (2nd member) | 25th | |
| Roman numberals | DXVII | DXXIII |
| Base 2 | 10000001012 | 10000010112 |
| Base 3 | 2010113 | 2011013 |
| Base 4 | 200114 | 200234 |
| Base 5 | 40325 | 40435 |
| Base 6 | 22216 | 22316 |
| Base 7 | 13367 | 13457 |
| Base 8 | 10058 | 10138 |
| Base 9 | 6349 | 6419 |
| Base 10 | 51710 | 52310 |
| Base 11 | 43011 | 43611 |
| Base 12 | 37112 | 37712 |
| Base 13 | 30a13 | 31313 |
| Base 14 | 28d14 | 29514 |
| Base 15 | 24715 | 24d15 |
| Base 16 | 20516 | 20b16 |