A:
Positive:
1 x 12151159911 x 1104650923 x 528311331 x 3919729253 x 480283341 x 356339713 x 1704237843 x 15493
Negative:
-1 x -121511599-11 x -11046509-23 x -5283113-31 x -3919729-253 x -480283-341 x -356339-713 x -170423-7843 x -15493
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 121,511,599, 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 | 121,511,599 | |
| -1 | -121,511,599 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,511,599.
Example:
1 x 121,511,599 = 121,511,599
and
-1 x -121,511,599 = 121,511,599
Notice both answers equal 121,511,599
With that explanation out of the way, let's continue. Next, we take the number 121,511,599 and divide it by 2:
121,511,599 ÷ 2 = 60,755,799.5
If the quotient is a whole number, then 2 and 60,755,799.5 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 | 121,511,599 | |
| -1 | -121,511,599 |
Now, we try dividing 121,511,599 by 3:
121,511,599 ÷ 3 = 40,503,866.3333
If the quotient is a whole number, then 3 and 40,503,866.3333 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 | 121,511,599 | |
| -1 | -121,511,599 |
Let's try dividing by 4:
121,511,599 ÷ 4 = 30,377,899.75
If the quotient is a whole number, then 4 and 30,377,899.75 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 | 121,511,599 | |
| -1 | 121,511,599 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 31 | 253 | 341 | 713 | 7,843 | 15,493 | 170,423 | 356,339 | 480,283 | 3,919,729 | 5,283,113 | 11,046,509 | 121,511,599 |
| -1 | -11 | -23 | -31 | -253 | -341 | -713 | -7,843 | -15,493 | -170,423 | -356,339 | -480,283 | -3,919,729 | -5,283,113 | -11,046,509 | -121,511,599 |
Here are some more numbers to try:
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