√128 = 11.313708499. 128 is not a perfect square; the result is irrational.

Is 128 a perfect square?

No, 128 is not a perfect square. Its square root is irrational.

What is 11.313708499 squared?

11.313708499 squared is approximately 128. (11.313708499)² ≈ 128

Instant answer with step-by-step solution

√128 = 11.313708499

√128 = 11.313708499

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

We need to find √128 — a number that when multiplied by itself equals 128.
128 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): √128 = 128^0.5 = 11.313708499
Verification: 11.313708499 × 11.313708499 ≈ 128 ✓ (rounded to 10 significant figures)

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