Simplify Square Root of 21256

Here we will show you two methods that you can use to simplify the square root of 21256. In other words, we will show you how to find the square root of 21256 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.

√21256 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 21256 to simplify the square root of 21256. 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 21256. The factors of 21256 are 1, 2, 4, 8, 2657, 5314, 10628, and 21256. Furthermore, the greatest perfect square on this list is 4 and the square root of 4 is 2. Therefore, A equals 2.

B = Calculate 21256 divided by the greatest perfect square from the list of all factors of 21256. We determined above that the greatest perfect square from the list of all factors of 21256 is 4. Furthermore, 21256 divided by 4 is 5314, therefore B equals 5314.

Now we have A and B and can get our answer to 21256 in its simplest radical form as follows:

√21256 = A√B

√21256 = 2√5314

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 21256 to simplify the square root of 21256 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 21256 and then take the square root of that product. The prime factors that multiply together to make 21256 are 2 x 2 x 2 x 2657. When we strip out the pairs only, we get 2 x 2 = 4 and the square root of 4 is 2. Therefore, A equals 2.

B = Divide 21256 by the number (A) squared. 2 squared is 4 and 21256 divided by 4 is 5314. Therefore, B equals 5314.

Once again we have A and B and can get our answer to 21256 in its simplest radical form as follows:

√21256 = A√B

√21256 = 2√5314

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Simplify Square Root of 21257
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