The folowing table expresses '981' 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 | 1111010101 | 111 | 11,10 | 1 | ||||||
| 3 | 1100100 | 10 | 1 | |||||||
| 4 | 33111 | 21 | 3 | |||||||
| 5 | 12411 | 14,10 | 1 | |||||||
| 6 | 4313 | 15,10 | 1 | |||||||
| 7 | 2601 | 12 | 3 | |||||||
| 8 | 1725 | 17,10 | 1 | |||||||
| 9 | 1310 | 5 | ||||||||
| 10 | 981 | 18 | 9 | |||||||
| 11 | 812 | 10 | 1 | |||||||
| 12 | 699 | 20 | 2 | |||||||
| 13 | 5A6 | 18 | 9 | |||||||
| 14 | 501 | 6 | ||||||||
| 15 | 456 | 10 | 1 | |||||||
| 16 | 3D5 | 15 | 6 |
Factors: 32 * 109