Simplify Square Root of 72225

Here we will show you two methods that you can use to simplify the square root of 72225. In other words, we will show you how to find the square root of 72225 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.

√72225 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 72225 to simplify the square root of 72225. 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 72225. The factors of 72225 are 1, 3, 5, 9, 15, 25, 27, 45, 75, 107, 135, 225, 321, 535, 675, 963, 1605, 2675, 2889, 4815, 8025, 14445, 24075, and 72225. Furthermore, the greatest perfect square on this list is 225 and the square root of 225 is 15. Therefore, A equals 15.

B = Calculate 72225 divided by the greatest perfect square from the list of all factors of 72225. We determined above that the greatest perfect square from the list of all factors of 72225 is 225. Furthermore, 72225 divided by 225 is 321, therefore B equals 321.

Now we have A and B and can get our answer to 72225 in its simplest radical form as follows:

√72225 = A√B

√72225 = 15√321

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 72225 to simplify the square root of 72225 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 72225 and then take the square root of that product. The prime factors that multiply together to make 72225 are 3 x 3 x 3 x 5 x 5 x 107. When we strip out the pairs only, we get 3 x 3 x 5 x 5 = 225 and the square root of 225 is 15. Therefore, A equals 15.

B = Divide 72225 by the number (A) squared. 15 squared is 225 and 72225 divided by 225 is 321. Therefore, B equals 321.

Once again we have A and B and can get our answer to 72225 in its simplest radical form as follows:

√72225 = A√B

√72225 = 15√321

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Simplify Square Root of 72226
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