Square Root Calculator › Square root of 642
Square Root of 642
√642 ≈ 25.337719
642 is not a perfect square, so √642 is an irrational number that is approximately 25.337719. In simplified radical form, √642 = √642.
√642 lies between √625 = 25 and √676 = 26.
| Number | 642 |
| Square root (decimal) | 25.337719 |
| Simplified radical | √642 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 642 a perfect square?
No, 642 is not a perfect square, so its square root is irrational and approximately 25.337719.
What is the square root of 642 in simplest radical form?
√642 = √642 in simplest radical form.