Square Root Calculator › Square root of 424
Square Root of 424
√424 ≈ 20.59126
424 is not a perfect square, so √424 is an irrational number that is approximately 20.59126. In simplified radical form, √424 = 2√106.
√424 lies between √400 = 20 and √441 = 21.
| Number | 424 |
| Square root (decimal) | 20.59126 |
| Simplified radical | 2√106 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 424 a perfect square?
No, 424 is not a perfect square, so its square root is irrational and approximately 20.59126.
What is the square root of 424 in simplest radical form?
√424 = 2√106 in simplest radical form.