√181 ≈ 13.4536
√181 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 | 13.5 |
| 2 | 13.45 |
| 3 | 13.454 |
| 4 | 13.4536 |
| 5 | 13.45362 |
| 10 (digits) | 13.4536240471 |
181 has no perfect-square factor other than 1, so √181 is already in simplest radical form.
13.4536 × 13.4536 ≈ 180.9994, which is very close to 181.
Need another number? Use the square root calculator (also cube roots and other roots).
| Number | Square root |
|---|---|
| 177 | 13.3041 |
| 178 | 13.3417 |
| 179 | 13.3791 |
| 180 | 13.4164 |
| 182 | 13.4907 |
| 183 | 13.5277 |
| 184 | 13.5647 |
| 185 | 13.6015 |