A:
Positive:
1 x 137908255 x 275816517 x 81122525 x 55163337 x 37272585 x 162245185 x 74545425 x 32449629 x 21925877 x 15725925 x 149093145 x 4385
Negative:
-1 x -13790825-5 x -2758165-17 x -811225-25 x -551633-37 x -372725-85 x -162245-185 x -74545-425 x -32449-629 x -21925-877 x -15725-925 x -14909-3145 x -4385
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 13,790,825, 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 | 13,790,825 | |
| -1 | -13,790,825 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,790,825.
Example:
1 x 13,790,825 = 13,790,825
and
-1 x -13,790,825 = 13,790,825
Notice both answers equal 13,790,825
With that explanation out of the way, let's continue. Next, we take the number 13,790,825 and divide it by 2:
13,790,825 ÷ 2 = 6,895,412.5
If the quotient is a whole number, then 2 and 6,895,412.5 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 | 13,790,825 | |
| -1 | -13,790,825 |
Now, we try dividing 13,790,825 by 3:
13,790,825 ÷ 3 = 4,596,941.6667
If the quotient is a whole number, then 3 and 4,596,941.6667 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 | 13,790,825 | |
| -1 | -13,790,825 |
Let's try dividing by 4:
13,790,825 ÷ 4 = 3,447,706.25
If the quotient is a whole number, then 4 and 3,447,706.25 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 | 13,790,825 | |
| -1 | 13,790,825 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 25 | 37 | 85 | 185 | 425 | 629 | 877 | 925 | 3,145 | 4,385 | 14,909 | 15,725 | 21,925 | 32,449 | 74,545 | 162,245 | 372,725 | 551,633 | 811,225 | 2,758,165 | 13,790,825 |
| -1 | -5 | -17 | -25 | -37 | -85 | -185 | -425 | -629 | -877 | -925 | -3,145 | -4,385 | -14,909 | -15,725 | -21,925 | -32,449 | -74,545 | -162,245 | -372,725 | -551,633 | -811,225 | -2,758,165 | -13,790,825 |
Here are some more numbers to try:
Try the factor calculator