Square Root Calculator › Square root of 491
Square Root of 491
√491 ≈ 22.15852
491 is not a perfect square, so √491 is an irrational number that is approximately 22.15852. In simplified radical form, √491 = √491.
√491 lies between √484 = 22 and √529 = 23.
| Number | 491 |
| Square root (decimal) | 22.15852 |
| Simplified radical | √491 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 491 a perfect square?
No, 491 is not a perfect square, so its square root is irrational and approximately 22.15852.
What is the square root of 491 in simplest radical form?
√491 = √491 in simplest radical form.