Square roots·√86
√86 =
√86
≈ 9.273618

Square root of 86 — 9.273618 (√86)

Irrational

The square root of 86 is about 9.273618, or exactly √86. It lies between 9 and 10.

As a decimal
≈ 9.273618
Simplified surd
√86 = √86
Between
9 < √86 < 10
Squared
86² = 7396
Cube root
∛86 ≈ 4.414005

Nearby numbers

√83 = √83√84 = 2√21√85 = √85√87 = √87√88 = 2√22√89 = √89

From 1 to 200

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How to read this

  • The decimal is rounded; the surd form is the exact value.
  • Pulling out a square factor simplifies the surd — √50 = 5√2.
  • If the number is not a perfect square, the decimal never ends (irrational).
  • Knowing which two integers it sits between is enough to estimate in your head.

Frequently asked questions

Q. What is the square root of 86?

About 9.273618, or exactly √86.

Q. Can the surd be simplified?

No — there is no square factor to pull out.

Q. Between which integers does it fall?

Between 9 and 10.

Q. What is the cube root of 86?

About 4.414005.