The folowing table expresses '398' 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 | 110001110 | 101 | 10 | 1 | |||||
| 3 | 112202 | 22,11 | 2 | ||||||
| 4 | 12032 | 20 | 2 | ||||||
| 5 | 3043 | 20 | 2 | ||||||
| 6 | 1502 | 12 | 3 | ||||||
| 7 | 1106 | 11 | 2 | ||||||
| 8 | 616 | 15 | 6 | ||||||
| 9 | 482 | 15 | 6 | ||||||
| 10 | 398 | 20 | 2 | ||||||
| 11 | 332 | 8 | |||||||
| 12 | 292 | 11 | 2 | ||||||
| 13 | 248 | 11 | 2 | ||||||
| 14 | 206 | 8 | |||||||
| 15 | 1B8 | 15 | 6 | ||||||
| 16 | 18E | 17 | 8 |
Factors: 2 * 199