Compare 655 vs 659
| Property | 655 | 659 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 1311 | 6591 |
| Prime factorization | 5 × 131 | 659 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 131, 655 | 1, 659 |
| Number of properties | 1 | 8 |
| Chen primes | 84th | |
| Long primes | 44th | |
| Primes | 120th | |
| Semiprimes | 197th | |
| Sexy primes (2nd member) | 59th | |
| Sexy prime quadrupletss (4th member) | 7th | |
| Sexy prime triplets (3rd member) | 25th | |
| Sophie germain primes | 30th | |
| Twin primes (1st member) | 30th | |
| Roman numberals | DCLV | DCLIX |
| Base 2 | 10100011112 | 10100100112 |
| Base 3 | 2200213 | 2201023 |
| Base 4 | 220334 | 221034 |
| Base 5 | 101105 | 101145 |
| Base 6 | 30116 | 30156 |
| Base 7 | 16247 | 16317 |
| Base 8 | 12178 | 12238 |
| Base 9 | 8079 | 8129 |
| Base 10 | 65510 | 65910 |
| Base 11 | 54611 | 54a11 |
| Base 12 | 46712 | 46b12 |
| Base 13 | 3b513 | 3b913 |
| Base 14 | 34b14 | 35114 |
| Base 15 | 2da15 | 2de15 |
| Base 16 | 28f16 | 29316 |