A:
Positive:
1 x 124969555 x 249939117 x 73511585 x 147023233 x 53635631 x 198051165 x 107273155 x 3961
Negative:
-1 x -12496955-5 x -2499391-17 x -735115-85 x -147023-233 x -53635-631 x -19805-1165 x -10727-3155 x -3961
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 12,496,955, 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 | 12,496,955 | |
| -1 | -12,496,955 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,496,955.
Example:
1 x 12,496,955 = 12,496,955
and
-1 x -12,496,955 = 12,496,955
Notice both answers equal 12,496,955
With that explanation out of the way, let's continue. Next, we take the number 12,496,955 and divide it by 2:
12,496,955 ÷ 2 = 6,248,477.5
If the quotient is a whole number, then 2 and 6,248,477.5 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 | 12,496,955 | |
| -1 | -12,496,955 |
Now, we try dividing 12,496,955 by 3:
12,496,955 ÷ 3 = 4,165,651.6667
If the quotient is a whole number, then 3 and 4,165,651.6667 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 | 12,496,955 | |
| -1 | -12,496,955 |
Let's try dividing by 4:
12,496,955 ÷ 4 = 3,124,238.75
If the quotient is a whole number, then 4 and 3,124,238.75 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 | 12,496,955 | |
| -1 | 12,496,955 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 233 | 631 | 1,165 | 3,155 | 3,961 | 10,727 | 19,805 | 53,635 | 147,023 | 735,115 | 2,499,391 | 12,496,955 |
| -1 | -5 | -17 | -85 | -233 | -631 | -1,165 | -3,155 | -3,961 | -10,727 | -19,805 | -53,635 | -147,023 | -735,115 | -2,499,391 | -12,496,955 |
Here are some more numbers to try:
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