Square Root Calculator › Square root of 457
Square Root of 457
√457 ≈ 21.377558
457 is not a perfect square, so √457 is an irrational number that is approximately 21.377558. In simplified radical form, √457 = √457.
√457 lies between √441 = 21 and √484 = 22.
| Number | 457 |
| Square root (decimal) | 21.377558 |
| Simplified radical | √457 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 457 a perfect square?
No, 457 is not a perfect square, so its square root is irrational and approximately 21.377558.
What is the square root of 457 in simplest radical form?
√457 = √457 in simplest radical form.