Square Root Calculator › Square root of 459
Square Root of 459
√459 ≈ 21.424285
459 is not a perfect square, so √459 is an irrational number that is approximately 21.424285. In simplified radical form, √459 = 3√51.
√459 lies between √441 = 21 and √484 = 22.
| Number | 459 |
| Square root (decimal) | 21.424285 |
| Simplified radical | 3√51 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 459 a perfect square?
No, 459 is not a perfect square, so its square root is irrational and approximately 21.424285.
What is the square root of 459 in simplest radical form?
√459 = 3√51 in simplest radical form.