Simplify Square Root of 42081

Here we will show you two methods that you can use to simplify the square root of 42081. In other words, we will show you how to find the square root of 42081 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.

√42081 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 42081 to simplify the square root of 42081. 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 42081. The factors of 42081 are 1, 3, 13, 39, 83, 169, 249, 507, 1079, 3237, 14027, and 42081. Furthermore, the greatest perfect square on this list is 169 and the square root of 169 is 13. Therefore, A equals 13.

B = Calculate 42081 divided by the greatest perfect square from the list of all factors of 42081. We determined above that the greatest perfect square from the list of all factors of 42081 is 169. Furthermore, 42081 divided by 169 is 249, therefore B equals 249.

Now we have A and B and can get our answer to 42081 in its simplest radical form as follows:

√42081 = A√B

√42081 = 13√249

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 42081 to simplify the square root of 42081 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 42081 and then take the square root of that product. The prime factors that multiply together to make 42081 are 3 x 13 x 13 x 83. When we strip out the pairs only, we get 13 x 13 = 169 and the square root of 169 is 13. Therefore, A equals 13.

B = Divide 42081 by the number (A) squared. 13 squared is 169 and 42081 divided by 169 is 249. Therefore, B equals 249.

Once again we have A and B and can get our answer to 42081 in its simplest radical form as follows:

√42081 = A√B

√42081 = 13√249

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Simplify Square Root of 42082
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