Q: What are the factor combinations of the number 987,733?

 A:
Positive:   1 x 987733113 x 8741
Negative: -1 x -987733-113 x -8741


How do I find the factor combinations of the number 987,733?

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 987,733, 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.

1 987,733
-1 -987,733

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 987,733.

Example:
1 x 987,733 = 987,733
and
-1 x -987,733 = 987,733
Notice both answers equal 987,733

With that explanation out of the way, let's continue. Next, we take the number 987,733 and divide it by 2:

987,733 ÷ 2 = 493,866.5

If the quotient is a whole number, then 2 and 493,866.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.

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

1 987,733
-1 -987,733

Now, we try dividing 987,733 by 3:

987,733 ÷ 3 = 329,244.3333

If the quotient is a whole number, then 3 and 329,244.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.

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

1 987,733
-1 -987,733

Let's try dividing by 4:

987,733 ÷ 4 = 246,933.25

If the quotient is a whole number, then 4 and 246,933.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.

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

1 987,733
-1 987,733
Keep dividing by the next highest number until you cannot divide anymore.

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

11138,741987,733
-1-113-8,741-987,733

More Examples

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