Q: What are the factor combinations of the number 26,508,007?

 A:
Positive:   1 x 2650800731 x 855097823 x 322091039 x 25513
Negative: -1 x -26508007-31 x -855097-823 x -32209-1039 x -25513


How do I find the factor combinations of the number 26,508,007?

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 26,508,007, 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 26,508,007
-1 -26,508,007

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 26,508,007.

Example:
1 x 26,508,007 = 26,508,007
and
-1 x -26,508,007 = 26,508,007
Notice both answers equal 26,508,007

With that explanation out of the way, let's continue. Next, we take the number 26,508,007 and divide it by 2:

26,508,007 ÷ 2 = 13,254,003.5

If the quotient is a whole number, then 2 and 13,254,003.5 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 26,508,007
-1 -26,508,007

Now, we try dividing 26,508,007 by 3:

26,508,007 ÷ 3 = 8,836,002.3333

If the quotient is a whole number, then 3 and 8,836,002.3333 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 26,508,007
-1 -26,508,007

Let's try dividing by 4:

26,508,007 ÷ 4 = 6,627,001.75

If the quotient is a whole number, then 4 and 6,627,001.75 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 26,508,007
-1 26,508,007
Keep dividing by the next highest number until you cannot divide anymore.

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

1318231,03925,51332,209855,09726,508,007
-1-31-823-1,039-25,513-32,209-855,097-26,508,007

More Examples

Here are some more numbers to try:

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