The folowing table expresses '121' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|
| 2 | 1111001 | 101 | 10 | 1 | |||
| 3 | 11111 | 12,10 | 1 | ||||
| 4 | 1321 | 13,10 | 1 | ||||
| 5 | 441 | 14,10 | 1 | ||||
| 6 | 321 | 10 | 1 | ||||
| 7 | 232 | 10 | 1 | ||||
| 8 | 171 | 11 | 2 | ||||
| 9 | 144 | 10 | 1 | ||||
| 10 | 121 | 4 | |||||
| 11 | 100 | 1 | |||||
| 12 | A1 | B | |||||
| 13 | 94,10 | 1 | |||||
| 14 | 89,13 | 4 | |||||
| 15 | 81 | 9 | |||||
| 16 | 79,10 | 1 |
Factors: 112