Q: What are the factor combinations of the number 181,732?

 A:
Positive:   1 x 1817322 x 908664 x 45433
Negative: -1 x -181732-2 x -90866-4 x -45433


How do I find the factor combinations of the number 181,732?

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 181,732, 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.

1 181,732
-1 -181,732

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 181,732.

Example:
1 x 181,732 = 181,732
and
-1 x -181,732 = 181,732
Notice both answers equal 181,732

With that explanation out of the way, let's continue. Next, we take the number 181,732 and divide it by 2:

181,732 ÷ 2 = 90,866

If the quotient is a whole number, then 2 and 90,866 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 90,866 181,732
-1 -2 -90,866 -181,732

Now, we try dividing 181,732 by 3:

181,732 ÷ 3 = 60,577.3333

If the quotient is a whole number, then 3 and 60,577.3333 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 2 90,866 181,732
-1 -2 -90,866 -181,732

Let's try dividing by 4:

181,732 ÷ 4 = 45,433

If the quotient is a whole number, then 4 and 45,433 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 4 45,433 90,866 181,732
-1 -2 -4 -45,433 -90,866 181,732
Keep dividing by the next highest number until you cannot divide anymore.

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

12445,43390,866181,732
-1-2-4-45,433-90,866-181,732

More Examples

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