√251 = 15.8429795178. 251 is not a perfect square; the result is irrational.

Is 251 a perfect square?

No, 251 is not a perfect square. Its square root is irrational.

What is 15.8429795178 squared?

15.8429795178 squared is approximately 251. (15.8429795178)² ≈ 251

Instant answer with step-by-step solution

√251 = 15.8429795178

√251 = 15.8429795178

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

We need to find √251 — a number that when multiplied by itself equals 251.
251 is not a perfect square. Its square root is irrational.
It falls between √225 = 15 and √256 = 16.
Using the formula √N = N^(1/2): √251 = 251^0.5 = 15.8429795178
Verification: 15.8429795178 × 15.8429795178 ≈ 251 ✓ (rounded to 10 significant figures)

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