What is the Square Root of 426?

Instant answer with step-by-step solution

√426 = 20.6397674406
√426 = 20.6397674406
⚠ 426 is not a perfect square — result rounded to 10 significant figures

Step-by-step explanation

  1. We need to find √426 — a number that when multiplied by itself equals 426.
  2. 426 is not a perfect square. Its square root is irrational.
  3. It falls between √400 = 20 and √441 = 21.
  4. Using the formula √N = N^(1/2): √426 = 426^0.5 = 20.6397674406
  5. Verification: 20.6397674406 × 20.6397674406 ≈ 426 ✓ (rounded to 10 significant figures)

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Related calculations

Square root of 426426 square root√425 = 20.6155281281√427 = 20.6639783198√424 = 20.591260282√428 = 20.6881608656√429 = 20.7123151772√423 = 20.5669638012

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Square Root Laws Square Root Chart Easiest Method Negative Square Roots