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What is the Square Root of 266?

The square root of 266 is 16.3095064303. Calculate another value or review the exact form, nearby perfect powers, and verification.

Answer

Square Root√266 = 16.3095064303
CalculatedNon-perfect squareIrrational
Exact form√266
Perfect squareNo
Number typeIrrational
Verification16.30950643032 ≈ 266

On this page

How the answer is calculated

We solve x2 = 266. The resulting value is x = 16.3095064303.

Verification: 16.30950643032 ≈ 266.

Simplified radical form

The square root of 266 in simplified radical form is √266.

There are no square factors that can be taken outside the radical, so √266 is already in simplest radical form.

Nearest Perfect squares

PositionBaseValue
Lower or equal16256
Upper or equal17289

Nearby square roots

NumberSquare root
√26316.2172747402
√26416.2480768093
√26516.2788205961
√26616.3095064303
√26716.3401346384
√26816.3707055437
√26916.4012194669

Number properties

Is 266 a perfect square?

No. Its square root is not a whole number.

Is the square root rational or irrational?

√266 is irrational because 266 is not a perfect square.

Visual guide

Square Root function graph

See how the result changes as the input moves across positive and negative values. Square roots are shown for non-negative inputs; cube roots continue through negative inputs.

Common questions

Frequently asked questions

It asks for the number that, when raised to the power of 2, equals 266.