What is the Square Root of 20 in Simplest Radical Form?

Square Root of 20 in Simplest Radical Form

Here we answer "What is the square root of 20 (√20) in simplest radical form?" The square root of 20 in its simplest form means to get the number 20 inside the radical √ as low as possible.

Here is how to do that! First we write the square root of 20 like this:

√20

The largest perfect square of the factors of 20 is 4. We can therefore convert √20 like this:

√4 × 5

Next, we separate the numbers inside the √ as such:

√4 × √5

√4 is a perfect square that equals 2. We can therefore put 2 outside the radical and get the final answer to square root of 20 in simplest radical form as follows:

2√5

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