Compare 659 vs 669
| Property | 659 | 669 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6591 | 31 × 2231 |
| Prime factorization | 659 | 3 × 223 |
| Divisors count | 2 | 4 |
| Divisors | 1, 659 | 1, 3, 223, 669 |
| Number of properties | 8 | 1 |
| Chen primes | 84th | |
| Long primes | 44th | |
| Primes | 120th | |
| Semiprimes | 200th | |
| 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 | DCLIX | DCLXIX |
| Base 2 | 10100100112 | 10100111012 |
| Base 3 | 2201023 | 2202103 |
| Base 4 | 221034 | 221314 |
| Base 5 | 101145 | 101345 |
| Base 6 | 30156 | 30336 |
| Base 7 | 16317 | 16447 |
| Base 8 | 12238 | 12358 |
| Base 9 | 8129 | 8239 |
| Base 10 | 65910 | 66910 |
| Base 11 | 54a11 | 55911 |
| Base 12 | 46b12 | 47912 |
| Base 13 | 3b913 | 3c613 |
| Base 14 | 35114 | 35b14 |
| Base 15 | 2de15 | 2e915 |
| Base 16 | 29316 | 29d16 |