Square Root Calculator › Square root of 321
Square Root of 321
√321 ≈ 17.916473
321 is not a perfect square, so √321 is an irrational number that is approximately 17.916473. In simplified radical form, √321 = √321.
√321 lies between √289 = 17 and √324 = 18.
| Number | 321 |
| Square root (decimal) | 17.916473 |
| Simplified radical | √321 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 321 a perfect square?
No, 321 is not a perfect square, so its square root is irrational and approximately 17.916473.
What is the square root of 321 in simplest radical form?
√321 = √321 in simplest radical form.