Q: What are the factor combinations of the number 18,755?

 A:
Positive:   1 x 187555 x 375111 x 170531 x 60555 x 341121 x 155
Negative: -1 x -18755-5 x -3751-11 x -1705-31 x -605-55 x -341-121 x -155


How do I find the factor combinations of the number 18,755?

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 18,755, 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 18,755
-1 -18,755

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 18,755.

Example:
1 x 18,755 = 18,755
and
-1 x -18,755 = 18,755
Notice both answers equal 18,755

With that explanation out of the way, let's continue. Next, we take the number 18,755 and divide it by 2:

18,755 ÷ 2 = 9,377.5

If the quotient is a whole number, then 2 and 9,377.5 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 18,755
-1 -18,755

Now, we try dividing 18,755 by 3:

18,755 ÷ 3 = 6,251.6667

If the quotient is a whole number, then 3 and 6,251.6667 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 18,755
-1 -18,755

Let's try dividing by 4:

18,755 ÷ 4 = 4,688.75

If the quotient is a whole number, then 4 and 4,688.75 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 18,755
-1 18,755
Keep dividing by the next highest number until you cannot divide anymore.

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

151131551211553416051,7053,75118,755
-1-5-11-31-55-121-155-341-605-1,705-3,751-18,755

More Examples

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