√685 = 26.1725046566. 685 is not a perfect square; the result is irrational.

Is 685 a perfect square?

No, 685 is not a perfect square. Its square root is irrational.

What is 26.1725046566 squared?

26.1725046566 squared is approximately 685. (26.1725046566)² ≈ 685

Instant answer with step-by-step solution

√685 = 26.1725046566

√685 = 26.1725046566

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

We need to find √685 — a number that when multiplied by itself equals 685.
685 is not a perfect square. Its square root is irrational.
It falls between √676 = 26 and √729 = 27.
Using the formula √N = N^(1/2): √685 = 685^0.5 = 26.1725046566
Verification: 26.1725046566 × 26.1725046566 ≈ 685 ✓ (rounded to 10 significant figures)

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