The folowing table expresses '428' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR9 | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|---|---|
| 2 | 110101100 | 101 | 10 | 1 | |||||
| 3 | 120212 | 22,11 | 2 | ||||||
| 4 | 12230 | 20 | 2 | ||||||
| 5 | 3203 | 13 | 4 | ||||||
| 6 | 1552 | 21 | 3 | ||||||
| 7 | 1151 | 11 | 2 | ||||||
| 8 | 654 | 17,10 | 1 | ||||||
| 9 | 525 | 13 | 4 | ||||||
| 10 | 428 | 14 | 5 | ||||||
| 11 | 35A | 17 | 8 | ||||||
| 12 | 2B8 | 19 | A | ||||||
| 13 | 26C | 17 | 8 | ||||||
| 14 | 228 | C | |||||||
| 15 | 1D8 | 17 | 8 | ||||||
| 16 | 1AC | 17 | 8 |
Factors: 22 * 107