√640 = 25.2982212813. 640 is not a perfect square; the result is irrational.

Is 640 a perfect square?

No, 640 is not a perfect square. Its square root is irrational.

What is 25.2982212813 squared?

25.2982212813 squared is approximately 640. (25.2982212813)² ≈ 640

Instant answer with step-by-step solution

√640 = 25.2982212813

√640 = 25.2982212813

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

We need to find √640 — a number that when multiplied by itself equals 640.
640 is not a perfect square. Its square root is irrational.
It falls between √625 = 25 and √676 = 26.
Using the formula √N = N^(1/2): √640 = 640^0.5 = 25.2982212813
Verification: 25.2982212813 × 25.2982212813 ≈ 640 ✓ (rounded to 10 significant figures)

√ =