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What is the Square Root of 355?

The square root of 355 is 18.8414436814. Calculate another value or review the exact form, nearby perfect powers, and verification.

Answer

Square Root√355 = 18.8414436814
CalculatedNon-perfect squareIrrational
Exact form√355
Perfect squareNo
Number typeIrrational
Verification18.84144368142 ≈ 355

On this page

How the answer is calculated

We solve x2 = 355. The resulting value is x = 18.8414436814.

Verification: 18.84144368142 ≈ 355.

Simplified radical form

The square root of 355 in simplified radical form is √355.

There are no square factors that can be taken outside the radical, so √355 is already in simplest radical form.

Nearest Perfect squares

PositionBaseValue
Lower or equal18324
Upper or equal19361

Nearby square roots

NumberSquare root
√35218.7616630393
√35318.7882942281
√35418.8148877222
√35518.8414436814
√35618.8679622641
√35718.8944436277
√35818.9208879284

Number properties

Is 355 a perfect square?

No. Its square root is not a whole number.

Is the square root rational or irrational?

√355 is irrational because 355 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 355.