Q: What are the factor combinations of the number 89,772?

 A:
Positive:   1 x 897722 x 448863 x 299244 x 224436 x 1496212 x 7481
Negative: -1 x -89772-2 x -44886-3 x -29924-4 x -22443-6 x -14962-12 x -7481


How do I find the factor combinations of the number 89,772?

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 divisors of larger numbers. To find the factor combinations of the number 89,772, it is easier to work with a table - it's called factoring from the outside in.

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. Then, below that, write the numbers as a negative as well.

1 89,772
-1 -89,772

Why are the negative numbers included?

When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 89,772.

Example:
1 x 89,772 = 89,772
and
-1 x -89,772 = 89,772
Notice both answers equal 89,772

With that explanation out of the way, let's continue. Next, we take the number 89,772 and divide it by 2:

89,772 ÷ 2 = 44,886

If the quotient is a whole number, then 2 and 44,886 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

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

1 2 44,886 89,772
-1 -2 -44,886 -89,772

Now, we try dividing 89,772 by 3:

89,772 ÷ 3 = 29,924

If the quotient is a whole number, then 3 and 29,924 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

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

1 2 3 29,924 44,886 89,772
-1 -2 -3 -29,924 -44,886 -89,772

Let's try dividing by 4:

89,772 ÷ 4 = 22,443

If the quotient is a whole number, then 4 and 22,443 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

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

1 2 3 4 22,443 29,924 44,886 89,772
-1 -2 -3 -4 -22,443 -29,924 -44,886 89,772
Keep dividing by the next highest number until you cannot divide anymore.

If you did it right, you will end up with this table:

12346127,48114,96222,44329,92444,88689,772
-1-2-3-4-6-12-7,481-14,962-22,443-29,924-44,886-89,772

More Examples

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