√257 = 16.0312195419. 257 is not a perfect square; the result is irrational.

Is 257 a perfect square?

No, 257 is not a perfect square. Its square root is irrational.

What is 16.0312195419 squared?

16.0312195419 squared is approximately 257. (16.0312195419)² ≈ 257

Instant answer with step-by-step solution

√257 = 16.0312195419

√257 = 16.0312195419

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

We need to find √257 — a number that when multiplied by itself equals 257.
257 is not a perfect square. Its square root is irrational.
It falls between √256 = 16 and √289 = 17.
Using the formula √N = N^(1/2): √257 = 257^0.5 = 16.0312195419
Verification: 16.0312195419 × 16.0312195419 ≈ 257 ✓ (rounded to 10 significant figures)

√ =