A:
Positive:
1 x 1339144719 x 70481337 x 36193143 x 311429443 x 30229703 x 19049817 x 163911591 x 8417
Negative:
-1 x -13391447-19 x -704813-37 x -361931-43 x -311429-443 x -30229-703 x -19049-817 x -16391-1591 x -8417
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 13,391,447, 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 | 13,391,447 | |
| -1 | -13,391,447 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,391,447.
Example:
1 x 13,391,447 = 13,391,447
and
-1 x -13,391,447 = 13,391,447
Notice both answers equal 13,391,447
With that explanation out of the way, let's continue. Next, we take the number 13,391,447 and divide it by 2:
13,391,447 ÷ 2 = 6,695,723.5
If the quotient is a whole number, then 2 and 6,695,723.5 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 | 13,391,447 | |
| -1 | -13,391,447 |
Now, we try dividing 13,391,447 by 3:
13,391,447 ÷ 3 = 4,463,815.6667
If the quotient is a whole number, then 3 and 4,463,815.6667 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 | 13,391,447 | |
| -1 | -13,391,447 |
Let's try dividing by 4:
13,391,447 ÷ 4 = 3,347,861.75
If the quotient is a whole number, then 4 and 3,347,861.75 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 | 13,391,447 | |
| -1 | 13,391,447 |
If you did it right, you will end up with this table:
| 1 | 19 | 37 | 43 | 443 | 703 | 817 | 1,591 | 8,417 | 16,391 | 19,049 | 30,229 | 311,429 | 361,931 | 704,813 | 13,391,447 |
| -1 | -19 | -37 | -43 | -443 | -703 | -817 | -1,591 | -8,417 | -16,391 | -19,049 | -30,229 | -311,429 | -361,931 | -704,813 | -13,391,447 |
Here are some more numbers to try:
Try the factor calculator