A:
Positive:
1 x 125128455 x 250256937 x 338185185 x 67637239 x 52355283 x 442151195 x 104711415 x 8843
Negative:
-1 x -12512845-5 x -2502569-37 x -338185-185 x -67637-239 x -52355-283 x -44215-1195 x -10471-1415 x -8843
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 12,512,845, 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 | 12,512,845 | |
| -1 | -12,512,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,512,845.
Example:
1 x 12,512,845 = 12,512,845
and
-1 x -12,512,845 = 12,512,845
Notice both answers equal 12,512,845
With that explanation out of the way, let's continue. Next, we take the number 12,512,845 and divide it by 2:
12,512,845 ÷ 2 = 6,256,422.5
If the quotient is a whole number, then 2 and 6,256,422.5 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 | 12,512,845 | |
| -1 | -12,512,845 |
Now, we try dividing 12,512,845 by 3:
12,512,845 ÷ 3 = 4,170,948.3333
If the quotient is a whole number, then 3 and 4,170,948.3333 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 | 12,512,845 | |
| -1 | -12,512,845 |
Let's try dividing by 4:
12,512,845 ÷ 4 = 3,128,211.25
If the quotient is a whole number, then 4 and 3,128,211.25 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 | 12,512,845 | |
| -1 | 12,512,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 239 | 283 | 1,195 | 1,415 | 8,843 | 10,471 | 44,215 | 52,355 | 67,637 | 338,185 | 2,502,569 | 12,512,845 |
| -1 | -5 | -37 | -185 | -239 | -283 | -1,195 | -1,415 | -8,843 | -10,471 | -44,215 | -52,355 | -67,637 | -338,185 | -2,502,569 | -12,512,845 |
Here are some more numbers to try:
Try the factor calculator