The folowing table expresses '628' 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 | 1001110100 | 101 | 10 | 1 | ||||||
| 3 | 212021 | 22,11 | 2 | |||||||
| 4 | 21310 | 13,10 | 1 | |||||||
| 5 | 10003 | 4 | ||||||||
| 6 | 2524 | 21 | 3 | |||||||
| 7 | 1555 | 22 | 4 | |||||||
| 8 | 1164 | 14 | 5 | |||||||
| 9 | 767 | 22 | 4 | |||||||
| 10 | 628 | 16 | 7 | |||||||
| 11 | 521 | 8 | ||||||||
| 12 | 444 | 10 | 1 | |||||||
| 13 | 394 | 13 | 4 | |||||||
| 14 | 32C | 13 | 4 | |||||||
| 15 | 2BD | 1B | C | |||||||
| 16 | 274 | D |
Factors: 22 * 157