The folowing table expresses '664' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR10 | DR9 | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 1010011000 | 100 | 1 | |||||||
| 3 | 220121 | 22,11 | 2 | |||||||
| 4 | 22120 | 13,10 | 1 | |||||||
| 5 | 10124 | 13 | 4 | |||||||
| 6 | 3024 | 13 | 4 | |||||||
| 7 | 1636 | 22 | 4 | |||||||
| 8 | 1230 | 6 | ||||||||
| 9 | 817 | 17 | 8 | |||||||
| 10 | 664 | 16 | 7 | |||||||
| 11 | 554 | 13 | 4 | |||||||
| 12 | 474 | 13 | 4 | |||||||
| 13 | 3C1 | 13 | 4 | |||||||
| 14 | 356 | 10 | 1 | |||||||
| 15 | 2E4 | 15 | 6 | |||||||
| 16 | 298 | 13 | 4 |
Factors: 23 * 83