Is 477 a perfect square?

No, 477 is not a perfect square. Its square root is irrational.

What is 21.8403296678 squared?

21.8403296678 squared is approximately 477. (21.8403296678)² ≈ 477

√477 = 21.8403296678. 477 is not a perfect square; the result is irrational.

Instant answer with step-by-step solution

√477 = 21.8403296678

√477 = 21.8403296678

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

We need to find √477 — a number that when multiplied by itself equals 477.
477 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): √477 = 477^0.5 = 21.8403296678
Verification: 21.8403296678 × 21.8403296678 ≈ 477 ✓ (rounded to 10 significant figures)

√ =