A:
Positive:
1 x 12215529711 x 11105027163 x 749419193 x 632929353 x 3460491793 x 681292123 x 575393883 x 31459
Negative:
-1 x -122155297-11 x -11105027-163 x -749419-193 x -632929-353 x -346049-1793 x -68129-2123 x -57539-3883 x -31459
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 122,155,297, 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 | 122,155,297 | |
| -1 | -122,155,297 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,155,297.
Example:
1 x 122,155,297 = 122,155,297
and
-1 x -122,155,297 = 122,155,297
Notice both answers equal 122,155,297
With that explanation out of the way, let's continue. Next, we take the number 122,155,297 and divide it by 2:
122,155,297 ÷ 2 = 61,077,648.5
If the quotient is a whole number, then 2 and 61,077,648.5 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 | 122,155,297 | |
| -1 | -122,155,297 |
Now, we try dividing 122,155,297 by 3:
122,155,297 ÷ 3 = 40,718,432.3333
If the quotient is a whole number, then 3 and 40,718,432.3333 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 | 122,155,297 | |
| -1 | -122,155,297 |
Let's try dividing by 4:
122,155,297 ÷ 4 = 30,538,824.25
If the quotient is a whole number, then 4 and 30,538,824.25 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 | 122,155,297 | |
| -1 | 122,155,297 |
If you did it right, you will end up with this table:
| 1 | 11 | 163 | 193 | 353 | 1,793 | 2,123 | 3,883 | 31,459 | 57,539 | 68,129 | 346,049 | 632,929 | 749,419 | 11,105,027 | 122,155,297 |
| -1 | -11 | -163 | -193 | -353 | -1,793 | -2,123 | -3,883 | -31,459 | -57,539 | -68,129 | -346,049 | -632,929 | -749,419 | -11,105,027 | -122,155,297 |
Here are some more numbers to try:
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