A:
Positive:
1 x 1220677855 x 244135577 x 1743825523 x 530729535 x 3487651115 x 1061459161 x 758185805 x 151637
Negative:
-1 x -122067785-5 x -24413557-7 x -17438255-23 x -5307295-35 x -3487651-115 x -1061459-161 x -758185-805 x -151637
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 122,067,785, 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 | 122,067,785 | |
| -1 | -122,067,785 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,067,785.
Example:
1 x 122,067,785 = 122,067,785
and
-1 x -122,067,785 = 122,067,785
Notice both answers equal 122,067,785
With that explanation out of the way, let's continue. Next, we take the number 122,067,785 and divide it by 2:
122,067,785 ÷ 2 = 61,033,892.5
If the quotient is a whole number, then 2 and 61,033,892.5 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 | 122,067,785 | |
| -1 | -122,067,785 |
Now, we try dividing 122,067,785 by 3:
122,067,785 ÷ 3 = 40,689,261.6667
If the quotient is a whole number, then 3 and 40,689,261.6667 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 | 122,067,785 | |
| -1 | -122,067,785 |
Let's try dividing by 4:
122,067,785 ÷ 4 = 30,516,946.25
If the quotient is a whole number, then 4 and 30,516,946.25 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 | 122,067,785 | |
| -1 | 122,067,785 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 115 | 161 | 805 | 151,637 | 758,185 | 1,061,459 | 3,487,651 | 5,307,295 | 17,438,255 | 24,413,557 | 122,067,785 |
| -1 | -5 | -7 | -23 | -35 | -115 | -161 | -805 | -151,637 | -758,185 | -1,061,459 | -3,487,651 | -5,307,295 | -17,438,255 | -24,413,557 | -122,067,785 |
Here are some more numbers to try:
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