Q: What are the factor combinations of the number 68,394?

 A:
Positive:   1 x 683942 x 341973 x 227986 x 11399
Negative: -1 x -68394-2 x -34197-3 x -22798-6 x -11399


How do I find the factor combinations of the number 68,394?

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 68,394, 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 68,394
-1 -68,394

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 68,394.

Example:
1 x 68,394 = 68,394
and
-1 x -68,394 = 68,394
Notice both answers equal 68,394

With that explanation out of the way, let's continue. Next, we take the number 68,394 and divide it by 2:

68,394 ÷ 2 = 34,197

If the quotient is a whole number, then 2 and 34,197 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 34,197 68,394
-1 -2 -34,197 -68,394

Now, we try dividing 68,394 by 3:

68,394 ÷ 3 = 22,798

If the quotient is a whole number, then 3 and 22,798 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 22,798 34,197 68,394
-1 -2 -3 -22,798 -34,197 -68,394

Let's try dividing by 4:

68,394 ÷ 4 = 17,098.5

If the quotient is a whole number, then 4 and 17,098.5 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 2 3 22,798 34,197 68,394
-1 -2 -3 -22,798 -34,197 68,394
Keep dividing by the next highest number until you cannot divide anymore.

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

123611,39922,79834,19768,394
-1-2-3-6-11,399-22,798-34,197-68,394

More Examples

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