Compare 655 vs 664
| Property | 655 | 664 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 4 |
| Prime factorization | 51 × 1311 | 23 × 831 |
| Prime factorization | 5 × 131 | 2 × 2 × 2 × 83 |
| Divisors count | 4 | 8 |
| Divisors | 1, 5, 131, 655 | 1, 2, 4, 8, 83, 166, 332, 664 |
| Number of properties | 1 | 0 |
| Semiprimes | 197th | |
| Roman numberals | DCLV | DCLXIV |
| Base 2 | 10100011112 | 10100110002 |
| Base 3 | 2200213 | 2201213 |
| Base 4 | 220334 | 221204 |
| Base 5 | 101105 | 101245 |
| Base 6 | 30116 | 30246 |
| Base 7 | 16247 | 16367 |
| Base 8 | 12178 | 12308 |
| Base 9 | 8079 | 8179 |
| Base 10 | 65510 | 66410 |
| Base 11 | 54611 | 55411 |
| Base 12 | 46712 | 47412 |
| Base 13 | 3b513 | 3c113 |
| Base 14 | 34b14 | 35614 |
| Base 15 | 2da15 | 2e415 |
| Base 16 | 28f16 | 29816 |