The folowing table expresses '643' 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 | 1010000011 | 100 | 1 | |||||||
| 3 | 212211 | 100 | 1 | |||||||
| 4 | 22003 | 13,10 | 1 | |||||||
| 5 | 10033 | 12 | 3 | |||||||
| 6 | 2551 | 21 | 3 | |||||||
| 7 | 1606 | 16,10 | 1 | |||||||
| 8 | 1203 | 6 | ||||||||
| 9 | 784 | 21 | 3 | |||||||
| 10 | 643 | 13 | 4 | |||||||
| 11 | 535 | 12 | 3 | |||||||
| 12 | 457 | 14 | 5 | |||||||
| 13 | 3A6 | 16 | 7 | |||||||
| 14 | 33D | 15 | 6 | |||||||
| 15 | 2CD | 1C | D | |||||||
| 16 | 283 | D |
Factors: Prime