Simplify Square Root of 72520

Here we will show you two methods that you can use to simplify the square root of 72520. In other words, we will show you how to find the square root of 72520 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.

√72520 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 72520 to simplify the square root of 72520. 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 72520. The factors of 72520 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 49, 56, 70, 74, 98, 140, 148, 185, 196, 245, 259, 280, 296, 370, 392, 490, 518, 740, 980, 1036, 1295, 1480, 1813, 1960, 2072, 2590, 3626, 5180, 7252, 9065, 10360, 14504, 18130, 36260, and 72520. Furthermore, the greatest perfect square on this list is 196 and the square root of 196 is 14. Therefore, A equals 14.

B = Calculate 72520 divided by the greatest perfect square from the list of all factors of 72520. We determined above that the greatest perfect square from the list of all factors of 72520 is 196. Furthermore, 72520 divided by 196 is 370, therefore B equals 370.

Now we have A and B and can get our answer to 72520 in its simplest radical form as follows:

√72520 = A√B

√72520 = 14√370

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 72520 to simplify the square root of 72520 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 72520 and then take the square root of that product. The prime factors that multiply together to make 72520 are 2 x 2 x 2 x 5 x 7 x 7 x 37. When we strip out the pairs only, we get 2 x 2 x 7 x 7 = 196 and the square root of 196 is 14. Therefore, A equals 14.

B = Divide 72520 by the number (A) squared. 14 squared is 196 and 72520 divided by 196 is 370. Therefore, B equals 370.

Once again we have A and B and can get our answer to 72520 in its simplest radical form as follows:

√72520 = A√B

√72520 = 14√370

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