Q: What are the factor combinations of the number 152,624?

 A:
Positive:   1 x 1526242 x 763124 x 381568 x 1907816 x 9539
Negative: -1 x -152624-2 x -76312-4 x -38156-8 x -19078-16 x -9539


How do I find the factor combinations of the number 152,624?

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 152,624, 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.

1 152,624
-1 -152,624

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 152,624.

Example:
1 x 152,624 = 152,624
and
-1 x -152,624 = 152,624
Notice both answers equal 152,624

With that explanation out of the way, let's continue. Next, we take the number 152,624 and divide it by 2:

152,624 ÷ 2 = 76,312

If the quotient is a whole number, then 2 and 76,312 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 76,312 152,624
-1 -2 -76,312 -152,624

Now, we try dividing 152,624 by 3:

152,624 ÷ 3 = 50,874.6667

If the quotient is a whole number, then 3 and 50,874.6667 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 2 76,312 152,624
-1 -2 -76,312 -152,624

Let's try dividing by 4:

152,624 ÷ 4 = 38,156

If the quotient is a whole number, then 4 and 38,156 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 38,156 76,312 152,624
-1 -2 -4 -38,156 -76,312 152,624
Keep dividing by the next highest number until you cannot divide anymore.

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

1248169,53919,07838,15676,312152,624
-1-2-4-8-16-9,539-19,078-38,156-76,312-152,624

More Examples

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