Q: What are the factor combinations of the number 867,313?

 A:
Positive:   1 x 86731373 x 11881109 x 7957
Negative: -1 x -867313-73 x -11881-109 x -7957


How do I find the factor combinations of the number 867,313?

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 867,313, 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.

1 867,313
-1 -867,313

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 867,313.

Example:
1 x 867,313 = 867,313
and
-1 x -867,313 = 867,313
Notice both answers equal 867,313

With that explanation out of the way, let's continue. Next, we take the number 867,313 and divide it by 2:

867,313 ÷ 2 = 433,656.5

If the quotient is a whole number, then 2 and 433,656.5 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:

1 867,313
-1 -867,313

Now, we try dividing 867,313 by 3:

867,313 ÷ 3 = 289,104.3333

If the quotient is a whole number, then 3 and 289,104.3333 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:

1 867,313
-1 -867,313

Let's try dividing by 4:

867,313 ÷ 4 = 216,828.25

If the quotient is a whole number, then 4 and 216,828.25 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:

1 867,313
-1 867,313
Keep dividing by the next highest number until you cannot divide anymore.

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

1731097,95711,881867,313
-1-73-109-7,957-11,881-867,313

More Examples

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