Q: What are the factor combinations of the number 9,138,833?

 A:
Positive:   1 x 913883311 x 83080343 x 212531139 x 65747473 x 193211529 x 5977
Negative: -1 x -9138833-11 x -830803-43 x -212531-139 x -65747-473 x -19321-1529 x -5977


How do I find the factor combinations of the number 9,138,833?

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 9,138,833, 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 9,138,833
-1 -9,138,833

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 9,138,833.

Example:
1 x 9,138,833 = 9,138,833
and
-1 x -9,138,833 = 9,138,833
Notice both answers equal 9,138,833

With that explanation out of the way, let's continue. Next, we take the number 9,138,833 and divide it by 2:

9,138,833 ÷ 2 = 4,569,416.5

If the quotient is a whole number, then 2 and 4,569,416.5 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 9,138,833
-1 -9,138,833

Now, we try dividing 9,138,833 by 3:

9,138,833 ÷ 3 = 3,046,277.6667

If the quotient is a whole number, then 3 and 3,046,277.6667 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 9,138,833
-1 -9,138,833

Let's try dividing by 4:

9,138,833 ÷ 4 = 2,284,708.25

If the quotient is a whole number, then 4 and 2,284,708.25 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 9,138,833
-1 9,138,833
Keep dividing by the next highest number until you cannot divide anymore.

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

111431394731,5295,97719,32165,747212,531830,8039,138,833
-1-11-43-139-473-1,529-5,977-19,321-65,747-212,531-830,803-9,138,833

More Examples

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