A:
Positive:
1 x 1237572055 x 2475144111 x 1125065513 x 951978555 x 225013165 x 1903957143 x 865435715 x 173087
Negative:
-1 x -123757205-5 x -24751441-11 x -11250655-13 x -9519785-55 x -2250131-65 x -1903957-143 x -865435-715 x -173087
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 123,757,205, 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 | 123,757,205 | |
| -1 | -123,757,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,757,205.
Example:
1 x 123,757,205 = 123,757,205
and
-1 x -123,757,205 = 123,757,205
Notice both answers equal 123,757,205
With that explanation out of the way, let's continue. Next, we take the number 123,757,205 and divide it by 2:
123,757,205 ÷ 2 = 61,878,602.5
If the quotient is a whole number, then 2 and 61,878,602.5 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 | 123,757,205 | |
| -1 | -123,757,205 |
Now, we try dividing 123,757,205 by 3:
123,757,205 ÷ 3 = 41,252,401.6667
If the quotient is a whole number, then 3 and 41,252,401.6667 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 | 123,757,205 | |
| -1 | -123,757,205 |
Let's try dividing by 4:
123,757,205 ÷ 4 = 30,939,301.25
If the quotient is a whole number, then 4 and 30,939,301.25 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 | 123,757,205 | |
| -1 | 123,757,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 13 | 55 | 65 | 143 | 715 | 173,087 | 865,435 | 1,903,957 | 2,250,131 | 9,519,785 | 11,250,655 | 24,751,441 | 123,757,205 |
| -1 | -5 | -11 | -13 | -55 | -65 | -143 | -715 | -173,087 | -865,435 | -1,903,957 | -2,250,131 | -9,519,785 | -11,250,655 | -24,751,441 | -123,757,205 |
Here are some more numbers to try:
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