Q: What are the factor combinations of the number 709,098?

 A:
Positive:   1 x 7090982 x 3545493 x 2363666 x 11818313 x 5454626 x 2727339 x 1818278 x 9091
Negative: -1 x -709098-2 x -354549-3 x -236366-6 x -118183-13 x -54546-26 x -27273-39 x -18182-78 x -9091


How do I find the factor combinations of the number 709,098?

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 709,098, 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.

1 709,098
-1 -709,098

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 709,098.

Example:
1 x 709,098 = 709,098
and
-1 x -709,098 = 709,098
Notice both answers equal 709,098

With that explanation out of the way, let's continue. Next, we take the number 709,098 and divide it by 2:

709,098 ÷ 2 = 354,549

If the quotient is a whole number, then 2 and 354,549 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 2 354,549 709,098
-1 -2 -354,549 -709,098

Now, we try dividing 709,098 by 3:

709,098 ÷ 3 = 236,366

If the quotient is a whole number, then 3 and 236,366 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 3 236,366 354,549 709,098
-1 -2 -3 -236,366 -354,549 -709,098

Let's try dividing by 4:

709,098 ÷ 4 = 177,274.5

If the quotient is a whole number, then 4 and 177,274.5 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 3 236,366 354,549 709,098
-1 -2 -3 -236,366 -354,549 709,098
Keep dividing by the next highest number until you cannot divide anymore.

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

1236132639789,09118,18227,27354,546118,183236,366354,549709,098
-1-2-3-6-13-26-39-78-9,091-18,182-27,273-54,546-118,183-236,366-354,549-709,098

More Examples

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