√27 = 5.1961524227. 27 is not a perfect square; the result is irrational.

Is 27 a perfect square?

No, 27 is not a perfect square. Its square root is irrational.

What is 5.1961524227 squared?

5.1961524227 squared is approximately 27. (5.1961524227)² ≈ 27

Instant answer with step-by-step solution

√27 = 5.1961524227

√27 = 5.1961524227

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

We need to find √27 — a number that when multiplied by itself equals 27.
27 is not a perfect square. Its square root is irrational.
It falls between √25 = 5 and √36 = 6.
Using the formula √N = N^(1/2): √27 = 27^0.5 = 5.1961524227
Verification: 5.1961524227 × 5.1961524227 ≈ 27 ✓ (rounded to 10 significant figures)

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