The folowing table expresses '440' 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 | 110111000 | 101 | 10 | 1 | |||||
| 3 | 121022 | 22,11 | 2 | ||||||
| 4 | 12320 | 20 | 2 | ||||||
| 5 | 3230 | 13 | 4 | ||||||
| 6 | 2012 | 5 | |||||||
| 7 | 1166 | 20 | 2 | ||||||
| 8 | 670 | 15 | 6 | ||||||
| 9 | 538 | 17 | 8 | ||||||
| 10 | 440 | 8 | |||||||
| 11 | 370 | A | |||||||
| 12 | 308 | B | |||||||
| 13 | 27B | 17 | 8 | ||||||
| 14 | 236 | B | |||||||
| 15 | 1E5 | 15 | 6 | ||||||
| 16 | 1B8 | 14 | 5 |
Factors: 23 * 5 * 11
440 is in the Pythagorean Triples: (440, 1911, 1961), (279, 440, 521).