The folowing table expresses '172' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|---|
| 2 | 10101100 | 100 | 1 | |||||
| 3 | 20101 | 11 | 2 | |||||
| 4 | 2230 | 13,10 | 1 | |||||
| 5 | 1142 | 13 | 4 | |||||
| 6 | 444 | 20 | 2 | |||||
| 7 | 334 | 13 | 4 | |||||
| 8 | 254 | 13 | 4 | |||||
| 9 | 211 | 4 | ||||||
| 10 | 172 | 10 | 1 | |||||
| 11 | 147 | 11 | 2 | |||||
| 12 | 124 | 7 | ||||||
| 13 | 103 | 4 | ||||||
| 14 | C4,12 | 3 | ||||||
| 15 | B7,13 | 4 | ||||||
| 16 | AC,16 | 7 |
Factors: 22 * 43
172 is in the Pythagorean Triple: (172, 1845, 1853).