√172 ≈ 13.1149
√172 is an irrational number, so its decimals never end or repeat. It sits between 13 and 14 because 13² = 169 and 14² = 196.
| Decimal places | Value |
|---|---|
| 0 | 13 |
| 1 | 13.1 |
| 2 | 13.11 |
| 3 | 13.115 |
| 4 | 13.1149 |
| 5 | 13.11488 |
| 10 (digits) | 13.1148770486 |
172 = 4 × 43 and √4 = 2, so √172 = 2√43.
13.1149 × 13.1149 ≈ 172.0006, which is very close to 172.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 168 | 12.9615 |
| 169 | 13 |
| 170 | 13.0384 |
| 171 | 13.0767 |
| 173 | 13.1529 |
| 174 | 13.1909 |
| 175 | 13.2288 |
| 176 | 13.2665 |