√459 = 21.4242852856. 459 is not a perfect square; the result is irrational.

Is 459 a perfect square?

No, 459 is not a perfect square. Its square root is irrational.

What is 21.4242852856 squared?

21.4242852856 squared is approximately 459. (21.4242852856)² ≈ 459

Instant answer with step-by-step solution

√459 = 21.4242852856

√459 = 21.4242852856

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

We need to find √459 — a number that when multiplied by itself equals 459.
459 is not a perfect square. Its square root is irrational.
It falls between √441 = 21 and √484 = 22.
Using the formula √N = N^(1/2): √459 = 459^0.5 = 21.4242852856
Verification: 21.4242852856 × 21.4242852856 ≈ 459 ✓ (rounded to 10 significant figures)

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