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What is the Square Root of 21729?

The square root of 21729 is 147.4075981759. Calculate another value or review the exact form, nearby perfect powers, and verification.

Answer

Square Root√21729 = 147.4075981759
CalculatedNon-perfect squareIrrational
Exact form√21729
Perfect squareNo
Number typeIrrational
Verification147.40759817592 ≈ 21729

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How the answer is calculated

We solve x2 = 21729. The resulting value is x = 147.4075981759.

Verification: 147.40759817592 ≈ 21729.

Simplified radical form

The square root of 21729 in simplified radical form is √21729.

There are no square factors that can be taken outside the radical, so √21729 is already in simplest radical form.

Nearest Perfect squares

PositionBaseValue
Lower or equal14721609
Upper or equal14821904

Nearby square roots

NumberSquare root
√21726147.3974219585
√21727147.400814109
√21728147.4042061815
√21729147.4075981759
√21730147.4109900923
√21731147.4143819307
√21732147.417773691

Number properties

Is 21729 a perfect square?

No. Its square root is not a whole number.

Is the square root rational or irrational?

√21729 is irrational because 21729 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 21729.