Is 138 a perfect square?

No, 138 is not a perfect square. Its square root is irrational.

What is 11.7473401245 squared?

11.7473401245 squared is approximately 138. (11.7473401245)² ≈ 138

√138 = 11.7473401245. 138 is not a perfect square; the result is irrational.

Instant answer with step-by-step solution

√138 = 11.7473401245

√138 = 11.7473401245

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

We need to find √138 — a number that when multiplied by itself equals 138.
138 is not a perfect square. Its square root is irrational.
It falls between √121 = 11 and √144 = 12.
Using the formula √N = N^(1/2): √138 = 138^0.5 = 11.7473401245
Verification: 11.7473401245 × 11.7473401245 ≈ 138 ✓ (rounded to 10 significant figures)

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