Q: What are the factor combinations of the number 329,165?

 A:
Positive:   1 x 3291655 x 6583343 x 7655215 x 1531
Negative: -1 x -329165-5 x -65833-43 x -7655-215 x -1531


How do I find the factor combinations of the number 329,165?

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 329,165, 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.

1 329,165
-1 -329,165

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 329,165.

Example:
1 x 329,165 = 329,165
and
-1 x -329,165 = 329,165
Notice both answers equal 329,165

With that explanation out of the way, let's continue. Next, we take the number 329,165 and divide it by 2:

329,165 ÷ 2 = 164,582.5

If the quotient is a whole number, then 2 and 164,582.5 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:

1 329,165
-1 -329,165

Now, we try dividing 329,165 by 3:

329,165 ÷ 3 = 109,721.6667

If the quotient is a whole number, then 3 and 109,721.6667 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:

1 329,165
-1 -329,165

Let's try dividing by 4:

329,165 ÷ 4 = 82,291.25

If the quotient is a whole number, then 4 and 82,291.25 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:

1 329,165
-1 329,165
Keep dividing by the next highest number until you cannot divide anymore.

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

15432151,5317,65565,833329,165
-1-5-43-215-1,531-7,655-65,833-329,165

More Examples

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