Q: What are the factor combinations of the number 26,207,502?

 A:
Positive:   1 x 262075022 x 131037513 x 87358346 x 4367917653 x 401341306 x 200671959 x 133783918 x 6689
Negative: -1 x -26207502-2 x -13103751-3 x -8735834-6 x -4367917-653 x -40134-1306 x -20067-1959 x -13378-3918 x -6689


How do I find the factor combinations of the number 26,207,502?

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 26,207,502, 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 26,207,502
-1 -26,207,502

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 26,207,502.

Example:
1 x 26,207,502 = 26,207,502
and
-1 x -26,207,502 = 26,207,502
Notice both answers equal 26,207,502

With that explanation out of the way, let's continue. Next, we take the number 26,207,502 and divide it by 2:

26,207,502 ÷ 2 = 13,103,751

If the quotient is a whole number, then 2 and 13,103,751 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 13,103,751 26,207,502
-1 -2 -13,103,751 -26,207,502

Now, we try dividing 26,207,502 by 3:

26,207,502 ÷ 3 = 8,735,834

If the quotient is a whole number, then 3 and 8,735,834 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 8,735,834 13,103,751 26,207,502
-1 -2 -3 -8,735,834 -13,103,751 -26,207,502

Let's try dividing by 4:

26,207,502 ÷ 4 = 6,551,875.5

If the quotient is a whole number, then 4 and 6,551,875.5 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 8,735,834 13,103,751 26,207,502
-1 -2 -3 -8,735,834 -13,103,751 26,207,502
Keep dividing by the next highest number until you cannot divide anymore.

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

12366531,3061,9593,9186,68913,37820,06740,1344,367,9178,735,83413,103,75126,207,502
-1-2-3-6-653-1,306-1,959-3,918-6,689-13,378-20,067-40,134-4,367,917-8,735,834-13,103,751-26,207,502

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