Simplify Square Root of 77040

Here we will show you two methods that you can use to simplify the square root of 77040. In other words, we will show you how to find the square root of 77040 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.

√77040 = A√B

Greatest Perfect Square Factor Method
The Greatest Perfect Square Factor Method uses the greatest perfect square factor of 77040 to simplify the square root of 77040. 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 77040. The factors of 77040 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 107, 120, 144, 180, 214, 240, 321, 360, 428, 535, 642, 720, 856, 963, 1070, 1284, 1605, 1712, 1926, 2140, 2568, 3210, 3852, 4280, 4815, 5136, 6420, 7704, 8560, 9630, 12840, 15408, 19260, 25680, 38520, and 77040. Furthermore, the greatest perfect square on this list is 144 and the square root of 144 is 12. Therefore, A equals 12.

B = Calculate 77040 divided by the greatest perfect square from the list of all factors of 77040. We determined above that the greatest perfect square from the list of all factors of 77040 is 144. Furthermore, 77040 divided by 144 is 535, therefore B equals 535.

Now we have A and B and can get our answer to 77040 in its simplest radical form as follows:

√77040 = A√B

√77040 = 12√535

Double Prime Factor Method
The Double Prime Factor Method uses the prime factors of 77040 to simplify the square root of 77040 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 77040 and then take the square root of that product. The prime factors that multiply together to make 77040 are 2 x 2 x 2 x 2 x 3 x 3 x 5 x 107. When we strip out the pairs only, we get 2 x 2 x 2 x 2 x 3 x 3 = 144 and the square root of 144 is 12. Therefore, A equals 12.

B = Divide 77040 by the number (A) squared. 12 squared is 144 and 77040 divided by 144 is 535. Therefore, B equals 535.

Once again we have A and B and can get our answer to 77040 in its simplest radical form as follows:

√77040 = A√B

√77040 = 12√535

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