A:
Positive:
1 x 125115255 x 250230513 x 96242525 x 50046165 x 192485137 x 91325281 x 44525325 x 38497685 x 182651405 x 89051781 x 70253425 x 3653
Negative:
-1 x -12511525-5 x -2502305-13 x -962425-25 x -500461-65 x -192485-137 x -91325-281 x -44525-325 x -38497-685 x -18265-1405 x -8905-1781 x -7025-3425 x -3653
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 12,511,525, 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 | 12,511,525 | |
| -1 | -12,511,525 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,511,525.
Example:
1 x 12,511,525 = 12,511,525
and
-1 x -12,511,525 = 12,511,525
Notice both answers equal 12,511,525
With that explanation out of the way, let's continue. Next, we take the number 12,511,525 and divide it by 2:
12,511,525 ÷ 2 = 6,255,762.5
If the quotient is a whole number, then 2 and 6,255,762.5 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 | 12,511,525 | |
| -1 | -12,511,525 |
Now, we try dividing 12,511,525 by 3:
12,511,525 ÷ 3 = 4,170,508.3333
If the quotient is a whole number, then 3 and 4,170,508.3333 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 | 12,511,525 | |
| -1 | -12,511,525 |
Let's try dividing by 4:
12,511,525 ÷ 4 = 3,127,881.25
If the quotient is a whole number, then 4 and 3,127,881.25 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 | 12,511,525 | |
| -1 | 12,511,525 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 137 | 281 | 325 | 685 | 1,405 | 1,781 | 3,425 | 3,653 | 7,025 | 8,905 | 18,265 | 38,497 | 44,525 | 91,325 | 192,485 | 500,461 | 962,425 | 2,502,305 | 12,511,525 |
| -1 | -5 | -13 | -25 | -65 | -137 | -281 | -325 | -685 | -1,405 | -1,781 | -3,425 | -3,653 | -7,025 | -8,905 | -18,265 | -38,497 | -44,525 | -91,325 | -192,485 | -500,461 | -962,425 | -2,502,305 | -12,511,525 |
Here are some more numbers to try:
Try the factor calculator