√221 = 14.8660687473. 221 is not a perfect square; the result is irrational.

Is 221 a perfect square?

No, 221 is not a perfect square. Its square root is irrational.

What is 14.8660687473 squared?

14.8660687473 squared is approximately 221. (14.8660687473)² ≈ 221

Instant answer with step-by-step solution

√221 = 14.8660687473

√221 = 14.8660687473

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

We need to find √221 — a number that when multiplied by itself equals 221.
221 is not a perfect square. Its square root is irrational.
It falls between √196 = 14 and √225 = 15.
Using the formula √N = N^(1/2): √221 = 221^0.5 = 14.8660687473
Verification: 14.8660687473 × 14.8660687473 ≈ 221 ✓ (rounded to 10 significant figures)

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