The square root of 166 calculated to 10 decimal places.
| Number | Square Root | Perfect Square? |
|---|---|---|
| 161 | 12.6885775404 | No |
| 162 | 12.7279220614 | No |
| 163 | 12.7671453348 | No |
| 164 | 12.8062484749 | No |
| 165 | 12.8452325787 | No |
| 166 | 12.8840987267 | No |
| 167 | 12.9228479833 | No |
| 168 | 12.9614813968 | No |
| 169 | 13 | Yes |
| 170 | 13.0384048104 | No |
| 171 | 13.0766968306 | No |
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