Q: What are the factor combinations of the number 312,088?

 A:
Positive:   1 x 3120882 x 1560444 x 780227 x 445848 x 3901114 x 2229228 x 1114656 x 5573
Negative: -1 x -312088-2 x -156044-4 x -78022-7 x -44584-8 x -39011-14 x -22292-28 x -11146-56 x -5573


How do I find the factor combinations of the number 312,088?

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 312,088, 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.

1 312,088
-1 -312,088

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 312,088.

Example:
1 x 312,088 = 312,088
and
-1 x -312,088 = 312,088
Notice both answers equal 312,088

With that explanation out of the way, let's continue. Next, we take the number 312,088 and divide it by 2:

312,088 ÷ 2 = 156,044

If the quotient is a whole number, then 2 and 156,044 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 2 156,044 312,088
-1 -2 -156,044 -312,088

Now, we try dividing 312,088 by 3:

312,088 ÷ 3 = 104,029.3333

If the quotient is a whole number, then 3 and 104,029.3333 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 2 156,044 312,088
-1 -2 -156,044 -312,088

Let's try dividing by 4:

312,088 ÷ 4 = 78,022

If the quotient is a whole number, then 4 and 78,022 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 78,022 156,044 312,088
-1 -2 -4 -78,022 -156,044 312,088
Keep dividing by the next highest number until you cannot divide anymore.

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

124781428565,57311,14622,29239,01144,58478,022156,044312,088
-1-2-4-7-8-14-28-56-5,573-11,146-22,292-39,011-44,584-78,022-156,044-312,088

More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 312,088:


Ask a Question