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What is the Square Root of 16666?

The square root of 16666 is 129.0968628589. Calculate another value or review the exact form, nearby perfect powers, and verification.

Answer

Square Root√16666 = 129.0968628589
CalculatedNon-perfect squareIrrational
Exact form√16666
Perfect squareNo
Number typeIrrational
Verification129.09686285892 ≈ 16666

On this page

How the answer is calculated

We solve x2 = 16666. The resulting value is x = 129.0968628589.

Verification: 129.09686285892 ≈ 16666.

Simplified radical form

The square root of 16666 in simplified radical form is √16666.

There are no square factors that can be taken outside the radical, so √16666 is already in simplest radical form.

Nearest Perfect squares

PositionBaseValue
Lower or equal12916641
Upper or equal13016900

Nearby square roots

NumberSquare root
√16663129.0852431535
√16664129.0891165048
√16665129.09298974
√16666129.0968628589
√16667129.1007358616
√16668129.1046087481
√16669129.1084815185

Number properties

Is 16666 a perfect square?

No. Its square root is not a whole number.

Is the square root rational or irrational?

√16666 is irrational because 16666 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 16666.