The folowing table expresses '403' 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 | 110010011 | 101 | 10 | 1 | |||||
| 3 | 112221 | 100 | 1 | ||||||
| 4 | 12103 | 13,10 | 1 | ||||||
| 5 | 3103 | 12 | 3 | ||||||
| 6 | 1511 | 12 | 3 | ||||||
| 7 | 1114 | 10 | 1 | ||||||
| 8 | 623 | 13 | 4 | ||||||
| 9 | 487 | 21 | 3 | ||||||
| 10 | 403 | 7 | |||||||
| 11 | 337 | 12 | 3 | ||||||
| 12 | 297 | 16 | 7 | ||||||
| 13 | 250 | 7 | |||||||
| 14 | 20B | D | |||||||
| 15 | 1BD | 1A | B | ||||||
| 16 | 193 | D |
Factors: 13 * 31
403 is in the Pythagorean Triple: (396, 403, 565).