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What is the Square Root of 15921?

The square root of 15921 is 126.1784450689. Calculate another value or review the exact form, nearby perfect powers, and verification.

Answer

Square Root√15921 = 126.1784450689
CalculatedNon-perfect squareIrrational
Exact form√15921
Perfect squareNo
Number typeIrrational
Verification126.17844506892 ≈ 15921

On this page

How the answer is calculated

We solve x2 = 15921. The resulting value is x = 126.1784450689.

Verification: 126.17844506892 ≈ 15921.

Simplified radical form

The square root of 15921 in simplified radical form is 3√1769.

This is equivalent to √15921, with perfect-square factors moved outside the radical.

Nearest Perfect squares

PositionBaseValue
Lower or equal12615876
Upper or equal12716129

Nearby square roots

NumberSquare root
√15918126.166556583
√15919126.1705195361
√15920126.1744823647
√15921126.1784450689
√15922126.1824076486
√15923126.1863701039
√15924126.1903324348

Number properties

Is 15921 a perfect square?

No. Its square root is not a whole number.

Is the square root rational or irrational?

√15921 is irrational because 15921 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 15921.