The folowing table expresses '681' 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 | 1010101001 | 101 | 10 | 1 | ||||||
| 3 | 221020 | 21,10 | 1 | |||||||
| 4 | 22221 | 21 | 3 | |||||||
| 5 | 10211 | 10 | 1 | |||||||
| 6 | 3053 | 15,10 | 1 | |||||||
| 7 | 1662 | 21 | 3 | |||||||
| 8 | 1251 | 11 | 2 | |||||||
| 9 | 836 | 18,10 | 1 | |||||||
| 10 | 681 | 15 | 6 | |||||||
| 11 | 56A | 1A,10 | 1 | |||||||
| 12 | 489 | 19 | A | |||||||
| 13 | 405 | 9 | ||||||||
| 14 | 369 | 14 | 5 | |||||||
| 15 | 306 | 9 | ||||||||
| 16 | 2A9 | 15 | 6 |
Factors: 3 * 227