√422 = 20.5426385842. 422 is not a perfect square; the result is irrational.

Is 422 a perfect square?

No, 422 is not a perfect square. Its square root is irrational.

What is 20.5426385842 squared?

20.5426385842 squared is approximately 422. (20.5426385842)² ≈ 422

Instant answer with step-by-step solution

√422 = 20.5426385842

√422 = 20.5426385842

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

We need to find √422 — a number that when multiplied by itself equals 422.
422 is not a perfect square. Its square root is irrational.
It falls between √400 = 20 and √441 = 21.
Using the formula √N = N^(1/2): √422 = 422^0.5 = 20.5426385842
Verification: 20.5426385842 × 20.5426385842 ≈ 422 ✓ (rounded to 10 significant figures)

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