Square Root Calculator › Square root of 387
Square Root of 387
√387 ≈ 19.672316
387 is not a perfect square, so √387 is an irrational number that is approximately 19.672316. In simplified radical form, √387 = 3√43.
√387 lies between √361 = 19 and √400 = 20.
| Number | 387 |
| Square root (decimal) | 19.672316 |
| Simplified radical | 3√43 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 387 a perfect square?
No, 387 is not a perfect square, so its square root is irrational and approximately 19.672316.
What is the square root of 387 in simplest radical form?
√387 = 3√43 in simplest radical form.