Square Root Calculator › Square root of 861
Square Root of 861
√861 ≈ 29.342802
861 is not a perfect square, so √861 is an irrational number that is approximately 29.342802. In simplified radical form, √861 = √861.
√861 lies between √841 = 29 and √900 = 30.
| Number | 861 |
| Square root (decimal) | 29.342802 |
| Simplified radical | √861 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 861 a perfect square?
No, 861 is not a perfect square, so its square root is irrational and approximately 29.342802.
What is the square root of 861 in simplest radical form?
√861 = √861 in simplest radical form.