Q: What are the factor combinations of the number 80,755?

 A:
Positive:   1 x 807555 x 1615131 x 2605155 x 521
Negative: -1 x -80755-5 x -16151-31 x -2605-155 x -521


How do I find the factor combinations of the number 80,755?

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 80,755, 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 80,755
-1 -80,755

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 80,755.

Example:
1 x 80,755 = 80,755
and
-1 x -80,755 = 80,755
Notice both answers equal 80,755

With that explanation out of the way, let's continue. Next, we take the number 80,755 and divide it by 2:

80,755 ÷ 2 = 40,377.5

If the quotient is a whole number, then 2 and 40,377.5 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 80,755
-1 -80,755

Now, we try dividing 80,755 by 3:

80,755 ÷ 3 = 26,918.3333

If the quotient is a whole number, then 3 and 26,918.3333 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 80,755
-1 -80,755

Let's try dividing by 4:

80,755 ÷ 4 = 20,188.75

If the quotient is a whole number, then 4 and 20,188.75 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 80,755
-1 80,755
Keep dividing by the next highest number until you cannot divide anymore.

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

15311555212,60516,15180,755
-1-5-31-155-521-2,605-16,151-80,755

More Examples

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