Q: What are the factor combinations of the number 867,317?

 A:
Positive:   1 x 86731711 x 7884737 x 23441407 x 2131
Negative: -1 x -867317-11 x -78847-37 x -23441-407 x -2131


How do I find the factor combinations of the number 867,317?

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 867,317, 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.

1 867,317
-1 -867,317

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 867,317.

Example:
1 x 867,317 = 867,317
and
-1 x -867,317 = 867,317
Notice both answers equal 867,317

With that explanation out of the way, let's continue. Next, we take the number 867,317 and divide it by 2:

867,317 ÷ 2 = 433,658.5

If the quotient is a whole number, then 2 and 433,658.5 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:

1 867,317
-1 -867,317

Now, we try dividing 867,317 by 3:

867,317 ÷ 3 = 289,105.6667

If the quotient is a whole number, then 3 and 289,105.6667 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:

1 867,317
-1 -867,317

Let's try dividing by 4:

867,317 ÷ 4 = 216,829.25

If the quotient is a whole number, then 4 and 216,829.25 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:

1 867,317
-1 867,317
Keep dividing by the next highest number until you cannot divide anymore.

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

111374072,13123,44178,847867,317
-1-11-37-407-2,131-23,441-78,847-867,317

More Examples

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