Compare 663 vs 664
| Property | 663 | 664 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 2 |
| Total factors | 3 | 4 |
| Prime factorization | 31 × 131 × 171 | 23 × 831 |
| Prime factorization | 3 × 13 × 17 | 2 × 2 × 2 × 83 |
| Divisors count | 8 | 8 |
| Divisors | 1, 3, 13, 17, 39, 51, 221, 663 | 1, 2, 4, 8, 83, 166, 332, 664 |
| Number of properties | 0 | 0 |
| Roman numberals | DCLXIII | DCLXIV |
| Base 2 | 10100101112 | 10100110002 |
| Base 3 | 2201203 | 2201213 |
| Base 4 | 221134 | 221204 |
| Base 5 | 101235 | 101245 |
| Base 6 | 30236 | 30246 |
| Base 7 | 16357 | 16367 |
| Base 8 | 12278 | 12308 |
| Base 9 | 8169 | 8179 |
| Base 10 | 66310 | 66410 |
| Base 11 | 55311 | 55411 |
| Base 12 | 47312 | 47412 |
| Base 13 | 3c013 | 3c113 |
| Base 14 | 35514 | 35614 |
| Base 15 | 2e315 | 2e415 |
| Base 16 | 29716 | 29816 |