Square Root Calculator › Square root of 343
Square Root of 343
√343 ≈ 18.520259
343 is not a perfect square, so √343 is an irrational number that is approximately 18.520259. In simplified radical form, √343 = 7√7.
√343 lies between √324 = 18 and √361 = 19.
| Number | 343 |
| Square root (decimal) | 18.520259 |
| Simplified radical | 7√7 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 343 a perfect square?
No, 343 is not a perfect square, so its square root is irrational and approximately 18.520259.
What is the square root of 343 in simplest radical form?
√343 = 7√7 in simplest radical form.