The folowing table expresses '1213' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR11 | DR10 | DR9 | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 10010111101 | 111 | 11,10 | 1 | |||||||
| 3 | 1122221 | 102 | 10 | 1 | |||||||
| 4 | 102331 | 22,10 | 1 | ||||||||
| 5 | 14323 | 23,10 | 1 | ||||||||
| 6 | 5341 | 21 | 3 | ||||||||
| 7 | 3352 | 16,10 | 1 | ||||||||
| 8 | 2275 | 20 | 2 | ||||||||
| 9 | 1587 | 23 | 5 | ||||||||
| 10 | 1213 | 7 | |||||||||
| 11 | A03 | 12 | 3 | ||||||||
| 12 | 851 | 12 | 3 | ||||||||
| 13 | 724 | 10 | 1 | ||||||||
| 14 | 629 | 13 | 4 | ||||||||
| 15 | 55D | 18 | 9 | ||||||||
| 16 | 4BD | 1C | D |
Factors: Prime