Simplify Square Root of 87680

Here we will show you two methods that you can use to simplify the square root of 87680. In other words, we will show you how to find the square root of 87680 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.

√87680 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 87680 to simplify the square root of 87680. 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 87680. The factors of 87680 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 274, 320, 548, 640, 685, 1096, 1370, 2192, 2740, 4384, 5480, 8768, 10960, 17536, 21920, 43840, and 87680. Furthermore, the greatest perfect square on this list is 64 and the square root of 64 is 8. Therefore, A equals 8.

B = Calculate 87680 divided by the greatest perfect square from the list of all factors of 87680. We determined above that the greatest perfect square from the list of all factors of 87680 is 64. Furthermore, 87680 divided by 64 is 1370, therefore B equals 1370.

Now we have A and B and can get our answer to 87680 in its simplest radical form as follows:

√87680 = A√B

√87680 = 8√1370

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 87680 to simplify the square root of 87680 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 87680 and then take the square root of that product. The prime factors that multiply together to make 87680 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 137. When we strip out the pairs only, we get 2 x 2 x 2 x 2 x 2 x 2 = 64 and the square root of 64 is 8. Therefore, A equals 8.

B = Divide 87680 by the number (A) squared. 8 squared is 64 and 87680 divided by 64 is 1370. Therefore, B equals 1370.

Once again we have A and B and can get our answer to 87680 in its simplest radical form as follows:

√87680 = A√B

√87680 = 8√1370

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