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What is the Square Root of 15987?

The square root of 15987 is 126.4397089525. Calculate another value or review the exact form, nearby perfect powers, and verification.

Answer

Square Root√15987 = 126.4397089525
CalculatedNon-perfect squareIrrational
Exact form√15987
Perfect squareNo
Number typeIrrational
Verification126.43970895252 ≈ 15987

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How the answer is calculated

We solve x2 = 15987. The resulting value is x = 126.4397089525.

Verification: 126.43970895252 ≈ 15987.

Simplified radical form

The square root of 15987 in simplified radical form is 73√3.

This is equivalent to √15987, with perfect-square factors moved outside the radical.

Nearest Perfect squares

PositionBaseValue
Lower or equal12615876
Upper or equal12716129

Nearby square roots

NumberSquare root
√15984126.4278450342
√15985126.4317997974
√15986126.4357544368
√15987126.4397089525
√15988126.4436633446
√15989126.447617613
√15990126.4515717577

Number properties

Is 15987 a perfect square?

No. Its square root is not a whole number.

Is the square root rational or irrational?

√15987 is irrational because 15987 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 15987.