Simplify Square Root of 78894

Here we will show you two methods that you can use to simplify the square root of 78894. In other words, we will show you how to find the square root of 78894 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.

√78894 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 78894 to simplify the square root of 78894. 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 78894. The factors of 78894 are 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 487, 974, 1461, 2922, 4383, 8766, 13149, 26298, 39447, and 78894. Furthermore, the greatest perfect square on this list is 81 and the square root of 81 is 9. Therefore, A equals 9.

B = Calculate 78894 divided by the greatest perfect square from the list of all factors of 78894. We determined above that the greatest perfect square from the list of all factors of 78894 is 81. Furthermore, 78894 divided by 81 is 974, therefore B equals 974.

Now we have A and B and can get our answer to 78894 in its simplest radical form as follows:

√78894 = A√B

√78894 = 9√974

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 78894 to simplify the square root of 78894 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 78894 and then take the square root of that product. The prime factors that multiply together to make 78894 are 2 x 3 x 3 x 3 x 3 x 487. 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 78894 by the number (A) squared. 9 squared is 81 and 78894 divided by 81 is 974. Therefore, B equals 974.

Once again we have A and B and can get our answer to 78894 in its simplest radical form as follows:

√78894 = A√B

√78894 = 9√974

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Simplify Square Root of 78895
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