Simplify Square Root of 18945

Here we will show you two methods that you can use to simplify the square root of 18945. In other words, we will show you how to find the square root of 18945 in its simplest radical form using two different methods.

To be more specific, we have created an illustration below showing what we want to calculate. Our goal is to make "A" outside the radical (√) as large as possible, and "B" inside the radical (√) as small as possible.

√18945 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 18945 to simplify the square root of 18945. This is how to calculate A and B using this method:

A = Calculate the square root of the greatest perfect square from the list of all factors of 18945. The factors of 18945 are 1, 3, 5, 9, 15, 45, 421, 1263, 2105, 3789, 6315, and 18945. Furthermore, the greatest perfect square on this list is 9 and the square root of 9 is 3. Therefore, A equals 3.

B = Calculate 18945 divided by the greatest perfect square from the list of all factors of 18945. We determined above that the greatest perfect square from the list of all factors of 18945 is 9. Furthermore, 18945 divided by 9 is 2105, therefore B equals 2105.

Now we have A and B and can get our answer to 18945 in its simplest radical form as follows:

√18945 = A√B

√18945 = 3√2105

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 18945 to simplify the square root of 18945 to its simplest form possible. This is how to calculate A and B using this method:

A = Multiply all the double prime factors (pairs) of 18945 and then take the square root of that product. The prime factors that multiply together to make 18945 are 3 x 3 x 5 x 421. When we strip out the pairs only, we get 3 x 3 = 9 and the square root of 9 is 3. Therefore, A equals 3.

B = Divide 18945 by the number (A) squared. 3 squared is 9 and 18945 divided by 9 is 2105. Therefore, B equals 2105.

Once again we have A and B and can get our answer to 18945 in its simplest radical form as follows:

√18945 = A√B

√18945 = 3√2105

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Simplify Square Root of 18946
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