Square Root Calculator › Square root of 668
Square Root of 668
√668 ≈ 25.845696
668 is not a perfect square, so √668 is an irrational number that is approximately 25.845696. In simplified radical form, √668 = 2√167.
√668 lies between √625 = 25 and √676 = 26.
| Number | 668 |
| Square root (decimal) | 25.845696 |
| Simplified radical | 2√167 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 668 a perfect square?
No, 668 is not a perfect square, so its square root is irrational and approximately 25.845696.
What is the square root of 668 in simplest radical form?
√668 = 2√167 in simplest radical form.