Q: What are the factors or divisors of the number 864?

 A: 12346891216182427323648547296108144216288432864

How do I find the factors or divisors of the number 864?

Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the factors of larger numbers. To find the factors of the number 864, it is easiest to start from the outside in. Here's what we mean:

Outside in Factoring

We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table.

1 864

Next, we take the number 864 and divide it by 2.

In this case, 864 ÷ 2 = 432

If the quotient is a whole number, then 2 and 432 are factors. Write them in the table below. If the quotient is not a whole number, skip to the next test.

1 2 432 864

Now, we try dividing 864 by 3.

864 ÷ 3 = 288

If the quotient is a whole number, then 3 and 288 are factors. Write them in the table below. If the quotient is not a whole number, skip to the next test.

Here is what our table should look like at this step:

1 2 3 288 432 864

Let's try dividing by 4.

864 ÷ 4 = 216

If the quotient is a whole number, then 4 and 216 are factors. Write them in the table below. If the quotient is not a whole number, skip to the next test.

Here is what our table should look like at this step:

1 2 3 4 216 288 432 864

We keep dividing by the next largest number, in this case the number 5. If the quotient of 864 ÷ 5 is a whole number, then 5 and your quotient are factors of the number.


Keep dividing by the next highest number until you cannot divide anymore.


What you will end up with is this table:

12346891216182427323648547296108144216288432864

All of the numbers in the table above can be evenly divided into the number 864.

Finally, for your reference, here are all of the divisor combinations of the number 864:

1 x 8642 x 4323 x 2884 x 2166 x 1448 x 1089 x 9612 x 7216 x 5418 x 4824 x 3627 x 32


More Examples

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