Simplify Square Root of 40905

Here we will show you two methods that you can use to simplify the square root of 40905. In other words, we will show you how to find the square root of 40905 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.

√40905 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 40905 to simplify the square root of 40905. 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 40905. The factors of 40905 are 1, 3, 5, 9, 15, 27, 45, 81, 101, 135, 303, 405, 505, 909, 1515, 2727, 4545, 8181, 13635, and 40905. Furthermore, the greatest perfect square on this list is 81 and the square root of 81 is 9. Therefore, A equals 9.

B = Calculate 40905 divided by the greatest perfect square from the list of all factors of 40905. We determined above that the greatest perfect square from the list of all factors of 40905 is 81. Furthermore, 40905 divided by 81 is 505, therefore B equals 505.

Now we have A and B and can get our answer to 40905 in its simplest radical form as follows:

√40905 = A√B

√40905 = 9√505

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 40905 to simplify the square root of 40905 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 40905 and then take the square root of that product. The prime factors that multiply together to make 40905 are 3 x 3 x 3 x 3 x 5 x 101. When we strip out the pairs only, we get 3 x 3 x 3 x 3 = 81 and the square root of 81 is 9. Therefore, A equals 9.

B = Divide 40905 by the number (A) squared. 9 squared is 81 and 40905 divided by 81 is 505. Therefore, B equals 505.

Once again we have A and B and can get our answer to 40905 in its simplest radical form as follows:

√40905 = A√B

√40905 = 9√505

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Simplify Square Root of 40906
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