A:
Positive:
1 x 125606455 x 251212923 x 546115115 x 109223239 x 52555457 x 274851195 x 105112285 x 5497
Negative:
-1 x -12560645-5 x -2512129-23 x -546115-115 x -109223-239 x -52555-457 x -27485-1195 x -10511-2285 x -5497
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 12,560,645, 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 | 12,560,645 | |
| -1 | -12,560,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,560,645.
Example:
1 x 12,560,645 = 12,560,645
and
-1 x -12,560,645 = 12,560,645
Notice both answers equal 12,560,645
With that explanation out of the way, let's continue. Next, we take the number 12,560,645 and divide it by 2:
12,560,645 ÷ 2 = 6,280,322.5
If the quotient is a whole number, then 2 and 6,280,322.5 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 | 12,560,645 | |
| -1 | -12,560,645 |
Now, we try dividing 12,560,645 by 3:
12,560,645 ÷ 3 = 4,186,881.6667
If the quotient is a whole number, then 3 and 4,186,881.6667 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 | 12,560,645 | |
| -1 | -12,560,645 |
Let's try dividing by 4:
12,560,645 ÷ 4 = 3,140,161.25
If the quotient is a whole number, then 4 and 3,140,161.25 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 | 12,560,645 | |
| -1 | 12,560,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 239 | 457 | 1,195 | 2,285 | 5,497 | 10,511 | 27,485 | 52,555 | 109,223 | 546,115 | 2,512,129 | 12,560,645 |
| -1 | -5 | -23 | -115 | -239 | -457 | -1,195 | -2,285 | -5,497 | -10,511 | -27,485 | -52,555 | -109,223 | -546,115 | -2,512,129 | -12,560,645 |
Here are some more numbers to try:
Try the factor calculator