The folowing table expresses '1405' 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 | 10101111101 | 1000 | 1 | ||||||||
| 3 | 1221001 | 21,10 | 1 | ||||||||
| 4 | 111331 | 22,10 | 1 | ||||||||
| 5 | 21110 | 10 | 1 | ||||||||
| 6 | 10301 | 5 | |||||||||
| 7 | 4045 | 16,10 | 1 | ||||||||
| 8 | 2575 | 23 | 5 | ||||||||
| 9 | 1831 | 14 | 5 | ||||||||
| 10 | 1405 | 10 | 1 | ||||||||
| 11 | 1068 | 14 | 5 | ||||||||
| 12 | 991 | 17 | 8 | ||||||||
| 13 | 841 | 10 | 1 | ||||||||
| 14 | 725 | 10 | 1 | ||||||||
| 15 | 63A | 14 | 5 | ||||||||
| 16 | 57D | 19 | A |
Factors: 5 * 281