A:
Positive:
1 x 1201170555 x 24023411103 x 1166185179 x 671045515 x 233237895 x 1342091303 x 921856515 x 18437
Negative:
-1 x -120117055-5 x -24023411-103 x -1166185-179 x -671045-515 x -233237-895 x -134209-1303 x -92185-6515 x -18437
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 120,117,055, 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 | 120,117,055 | |
| -1 | -120,117,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,117,055.
Example:
1 x 120,117,055 = 120,117,055
and
-1 x -120,117,055 = 120,117,055
Notice both answers equal 120,117,055
With that explanation out of the way, let's continue. Next, we take the number 120,117,055 and divide it by 2:
120,117,055 ÷ 2 = 60,058,527.5
If the quotient is a whole number, then 2 and 60,058,527.5 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 | 120,117,055 | |
| -1 | -120,117,055 |
Now, we try dividing 120,117,055 by 3:
120,117,055 ÷ 3 = 40,039,018.3333
If the quotient is a whole number, then 3 and 40,039,018.3333 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 | 120,117,055 | |
| -1 | -120,117,055 |
Let's try dividing by 4:
120,117,055 ÷ 4 = 30,029,263.75
If the quotient is a whole number, then 4 and 30,029,263.75 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 | 120,117,055 | |
| -1 | 120,117,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 103 | 179 | 515 | 895 | 1,303 | 6,515 | 18,437 | 92,185 | 134,209 | 233,237 | 671,045 | 1,166,185 | 24,023,411 | 120,117,055 |
| -1 | -5 | -103 | -179 | -515 | -895 | -1,303 | -6,515 | -18,437 | -92,185 | -134,209 | -233,237 | -671,045 | -1,166,185 | -24,023,411 | -120,117,055 |
Here are some more numbers to try:
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