# What is the square root of 4

The short answer is $$\sqrt{ 4 } = 2$$.

If that's all you're looking for, thanks for coming by. But if you're interested in the hows and whys behind square roots, continue reading and we'll tell you all about the square root of 4.

## 4 is a perfect square

Let's look at some math.

$$\LARGE \sqrt{ 4 } = 2$$

The important part is to the right of the equals sign. Since the square root of 4 is a whole number, that means that 4 is a perfect square. The square root of 4 is 2, which is a whole number.

The next perfect square greater than 4 is 9. The previous perfect square less than 4 is 1.

## Square root of 4 as an exponent

Any square root can be converted to a number with a fractional exponent. In the case of 4 the following two values are equal.

$$\LARGE \sqrt{ 4 } = 4^{^1/_2}$$

## Square Root Calculator

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