Q: What are the factor combinations of the number 13,387,879?
A:
Positive:
1 x 1338787929 x 461651841 x 15919
Negative:
-1 x -13387879-29 x -461651-841 x -15919
A:
Positive:
1 x 1338787929 x 461651841 x 15919
Negative:
-1 x -13387879-29 x -461651-841 x -15919
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 13,387,879, it is easier to work with a table - it's called factoring from the outside in.
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 | 13,387,879 | |
-1 | -13,387,879 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,387,879.
Example:
1 x 13,387,879 = 13,387,879
and
-1 x -13,387,879 = 13,387,879
Notice both answers equal 13,387,879
With that explanation out of the way, let's continue. Next, we take the number 13,387,879 and divide it by 2:
13,387,879 ÷ 2 = 6,693,939.5
If the quotient is a whole number, then 2 and 6,693,939.5 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 | 13,387,879 | |
-1 | -13,387,879 |
Now, we try dividing 13,387,879 by 3:
13,387,879 ÷ 3 = 4,462,626.3333
If the quotient is a whole number, then 3 and 4,462,626.3333 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 | 13,387,879 | |
-1 | -13,387,879 |
Let's try dividing by 4:
13,387,879 ÷ 4 = 3,346,969.75
If the quotient is a whole number, then 4 and 3,346,969.75 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 | 13,387,879 | |
-1 | 13,387,879 |
If you did it right, you will end up with this table:
1 | 29 | 841 | 15,919 | 461,651 | 13,387,879 |
-1 | -29 | -841 | -15,919 | -461,651 | -13,387,879 |
Here are some more numbers to try:
Try the factor calculator