The folowing table expresses '891' 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 | 1101111011 | 1000 | 1 | |||||||
| 3 | 1020000 | 10 | 1 | |||||||
| 4 | 31323 | 30 | 3 | |||||||
| 5 | 12031 | 12 | 3 | |||||||
| 6 | 4043 | 15,10 | 1 | |||||||
| 7 | 2412 | 12 | 3 | |||||||
| 8 | 1573 | 20 | 2 | |||||||
| 9 | 1200 | 3 | ||||||||
| 10 | 891 | 18 | 9 | |||||||
| 11 | 740 | 10 | 1 | |||||||
| 12 | 623 | B | ||||||||
| 13 | 537 | 12 | 3 | |||||||
| 14 | 479 | 16 | 7 | |||||||
| 15 | 3E6 | 18 | 9 | |||||||
| 16 | 37B | 15 | 6 |
Factors: 34 * 11
891 is in the Pythagorean Triple: (891, 3220, 3341).