√158 = 12.56980509. 158 is not a perfect square; the result is irrational.

Is 158 a perfect square?

No, 158 is not a perfect square. Its square root is irrational.

What is 12.56980509 squared?

12.56980509 squared is approximately 158. (12.56980509)² ≈ 158

Instant answer with step-by-step solution

√158 = 12.56980509

√158 = 12.56980509

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

We need to find √158 — a number that when multiplied by itself equals 158.
158 is not a perfect square. Its square root is irrational.
It falls between √144 = 12 and √169 = 13.
Using the formula √N = N^(1/2): √158 = 158^0.5 = 12.56980509
Verification: 12.56980509 × 12.56980509 ≈ 158 ✓ (rounded to 10 significant figures)

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