Square Root Calculator › Square root of 456
Square Root of 456
√456 ≈ 21.354157
456 is not a perfect square, so √456 is an irrational number that is approximately 21.354157. In simplified radical form, √456 = 2√114.
√456 lies between √441 = 21 and √484 = 22.
| Number | 456 |
| Square root (decimal) | 21.354157 |
| Simplified radical | 2√114 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 456 a perfect square?
No, 456 is not a perfect square, so its square root is irrational and approximately 21.354157.
What is the square root of 456 in simplest radical form?
√456 = 2√114 in simplest radical form.