Simplify Square Root of 42385

Here we will show you two methods that you can use to simplify the square root of 42385. In other words, we will show you how to find the square root of 42385 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.

√42385 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 42385 to simplify the square root of 42385. 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 42385. The factors of 42385 are 1, 5, 7, 35, 49, 173, 245, 865, 1211, 6055, 8477, and 42385. Furthermore, the greatest perfect square on this list is 49 and the square root of 49 is 7. Therefore, A equals 7.

B = Calculate 42385 divided by the greatest perfect square from the list of all factors of 42385. We determined above that the greatest perfect square from the list of all factors of 42385 is 49. Furthermore, 42385 divided by 49 is 865, therefore B equals 865.

Now we have A and B and can get our answer to 42385 in its simplest radical form as follows:

√42385 = A√B

√42385 = 7√865

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 42385 to simplify the square root of 42385 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 42385 and then take the square root of that product. The prime factors that multiply together to make 42385 are 5 x 7 x 7 x 173. When we strip out the pairs only, we get 7 x 7 = 49 and the square root of 49 is 7. Therefore, A equals 7.

B = Divide 42385 by the number (A) squared. 7 squared is 49 and 42385 divided by 49 is 865. Therefore, B equals 865.

Once again we have A and B and can get our answer to 42385 in its simplest radical form as follows:

√42385 = A√B

√42385 = 7√865

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Simplify Square Root of 42386
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