Q: What are the factor combinations of the number 41,431,146?

 A:
Positive:   1 x 414311462 x 207155733 x 138103826 x 6905191
Negative: -1 x -41431146-2 x -20715573-3 x -13810382-6 x -6905191


How do I find the factor combinations of the number 41,431,146?

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 41,431,146, 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 41,431,146
-1 -41,431,146

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 41,431,146.

Example:
1 x 41,431,146 = 41,431,146
and
-1 x -41,431,146 = 41,431,146
Notice both answers equal 41,431,146

With that explanation out of the way, let's continue. Next, we take the number 41,431,146 and divide it by 2:

41,431,146 ÷ 2 = 20,715,573

If the quotient is a whole number, then 2 and 20,715,573 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 20,715,573 41,431,146
-1 -2 -20,715,573 -41,431,146

Now, we try dividing 41,431,146 by 3:

41,431,146 ÷ 3 = 13,810,382

If the quotient is a whole number, then 3 and 13,810,382 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 13,810,382 20,715,573 41,431,146
-1 -2 -3 -13,810,382 -20,715,573 -41,431,146

Let's try dividing by 4:

41,431,146 ÷ 4 = 10,357,786.5

If the quotient is a whole number, then 4 and 10,357,786.5 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 13,810,382 20,715,573 41,431,146
-1 -2 -3 -13,810,382 -20,715,573 41,431,146
Keep dividing by the next highest number until you cannot divide anymore.

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

12366,905,19113,810,38220,715,57341,431,146
-1-2-3-6-6,905,191-13,810,382-20,715,573-41,431,146

More Examples

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