√387 = 19.6723155729. 387 is not a perfect square; the result is irrational.

Is 387 a perfect square?

No, 387 is not a perfect square. Its square root is irrational.

What is 19.6723155729 squared?

19.6723155729 squared is approximately 387. (19.6723155729)² ≈ 387

Instant answer with step-by-step solution

√387 = 19.6723155729

√387 = 19.6723155729

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

We need to find √387 — a number that when multiplied by itself equals 387.
387 is not a perfect square. Its square root is irrational.
It falls between √361 = 19 and √400 = 20.
Using the formula √N = N^(1/2): √387 = 387^0.5 = 19.6723155729
Verification: 19.6723155729 × 19.6723155729 ≈ 387 ✓ (rounded to 10 significant figures)

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