# What is the square root of 42

The short answer is $$\sqrt{ 42 } = 6.4807406984079$$.

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 42.

## 42 is not a perfect square

Let's look at some math

$$\LARGE \sqrt{ 42 } = 6.4807406984079$$

Note that $$6.4807406984079$$ is not a whole number, therefore 42 is not a perfect square.

The next perfect square greater than 42 is 49. The previous perfect square less than 42 is 36.

## Square root of 42 as an exponent

Any square root can be converted to a number with a fractional exponent. In the case of 42 the following two values are equal.

$$\LARGE \sqrt{ 42 } = 42^{^1/_2}$$

## Square root of 42 as a fraction

Since 42 is not a perfect square, sometimes we might want to get a fractional estimate of the square root value. In the case of 42 that value is $$\Large 6 \frac{25}{52}$$.

## Square Root Calculator

Enter any number up to 1,000,000 in this field to calculate the square root