Square Root of 861

Instant answer with step-by-step solution

√861 = 29.3428015022
√861 = 29.3428015022
⚠ 861 is not a perfect square — result rounded to 10 significant figures

Step-by-step explanation

  1. We need to find √861 — a number that when multiplied by itself equals 861.
  2. 861 is not a perfect square. Its square root is irrational.
  3. It falls between √841 = 29 and √900 = 30.
  4. Using the formula √N = N^(1/2): √861 = 861^0.5 = 29.3428015022
  5. Verification: 29.3428015022 × 29.3428015022 ≈ 861 ✓ (rounded to 10 significant figures)

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