The square root of 396 calculated to 10 decimal places.
| Number | Square Root | Perfect Square? |
|---|---|---|
| 391 | 19.7737199333 | No |
| 392 | 19.7989898732 | No |
| 393 | 19.8242276016 | No |
| 394 | 19.8494332413 | No |
| 395 | 19.8746069144 | No |
| 396 | 19.8997487421 | No |
| 397 | 19.9248588452 | No |
| 398 | 19.9499373433 | No |
| 399 | 19.9749843554 | No |
| 400 | 20 | Yes |
| 401 | 20.0249843945 | No |
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