Q: What are the factor combinations of the number 150,310,326?

 A:
Positive:   1 x 1503103262 x 751551633 x 501034426 x 250517211063 x 1414022126 x 707013189 x 471346378 x 23567
Negative: -1 x -150310326-2 x -75155163-3 x -50103442-6 x -25051721-1063 x -141402-2126 x -70701-3189 x -47134-6378 x -23567


How do I find the factor combinations of the number 150,310,326?

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 150,310,326, 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.

1 150,310,326
-1 -150,310,326

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 150,310,326.

Example:
1 x 150,310,326 = 150,310,326
and
-1 x -150,310,326 = 150,310,326
Notice both answers equal 150,310,326

With that explanation out of the way, let's continue. Next, we take the number 150,310,326 and divide it by 2:

150,310,326 ÷ 2 = 75,155,163

If the quotient is a whole number, then 2 and 75,155,163 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 75,155,163 150,310,326
-1 -2 -75,155,163 -150,310,326

Now, we try dividing 150,310,326 by 3:

150,310,326 ÷ 3 = 50,103,442

If the quotient is a whole number, then 3 and 50,103,442 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 3 50,103,442 75,155,163 150,310,326
-1 -2 -3 -50,103,442 -75,155,163 -150,310,326

Let's try dividing by 4:

150,310,326 ÷ 4 = 37,577,581.5

If the quotient is a whole number, then 4 and 37,577,581.5 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 2 3 50,103,442 75,155,163 150,310,326
-1 -2 -3 -50,103,442 -75,155,163 150,310,326
Keep dividing by the next highest number until you cannot divide anymore.

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

12361,0632,1263,1896,37823,56747,13470,701141,40225,051,72150,103,44275,155,163150,310,326
-1-2-3-6-1,063-2,126-3,189-6,378-23,567-47,134-70,701-141,402-25,051,721-50,103,442-75,155,163-150,310,326

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