Square Root Calculator › Square root of 77
Square Root of 77
√77 ≈ 8.774964
77 is not a perfect square, so √77 is an irrational number that is approximately 8.774964. In simplified radical form, √77 = √77.
√77 lies between √64 = 8 and √81 = 9.
| Number | 77 |
| Square root (decimal) | 8.774964 |
| Simplified radical | √77 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 77 a perfect square?
No, 77 is not a perfect square, so its square root is irrational and approximately 8.774964.
What is the square root of 77 in simplest radical form?
√77 = √77 in simplest radical form.