Square Root Calculator › Square root of 266
Square Root of 266
√266 ≈ 16.309506
266 is not a perfect square, so √266 is an irrational number that is approximately 16.309506. In simplified radical form, √266 = √266.
√266 lies between √256 = 16 and √289 = 17.
| Number | 266 |
| Square root (decimal) | 16.309506 |
| Simplified radical | √266 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 266 a perfect square?
No, 266 is not a perfect square, so its square root is irrational and approximately 16.309506.
What is the square root of 266 in simplest radical form?
√266 = √266 in simplest radical form.