Square Root Calculator › Square root of 451
Square Root of 451
√451 ≈ 21.236761
451 is not a perfect square, so √451 is an irrational number that is approximately 21.236761. In simplified radical form, √451 = √451.
√451 lies between √441 = 21 and √484 = 22.
| Number | 451 |
| Square root (decimal) | 21.236761 |
| Simplified radical | √451 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 451 a perfect square?
No, 451 is not a perfect square, so its square root is irrational and approximately 21.236761.
What is the square root of 451 in simplest radical form?
√451 = √451 in simplest radical form.