√321 = 17.9164728672. 321 is not a perfect square; the result is irrational.

Is 321 a perfect square?

No, 321 is not a perfect square. Its square root is irrational.

What is 17.9164728672 squared?

17.9164728672 squared is approximately 321. (17.9164728672)² ≈ 321

Instant answer with step-by-step solution

√321 = 17.9164728672

√321 = 17.9164728672

⚠ 321 is not a perfect square — result rounded to 10 significant figures

We need to find √321 — a number that when multiplied by itself equals 321.
321 is not a perfect square. Its square root is irrational.
It falls between √289 = 17 and √324 = 18.
Using the formula √N = N^(1/2): √321 = 321^0.5 = 17.9164728672
Verification: 17.9164728672 × 17.9164728672 ≈ 321 ✓ (rounded to 10 significant figures)

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