A:
Positive:
1 x 2012301055 x 4024602117 x 1183706523 x 874913585 x 2367413115 x 1749827391 x 5146551955 x 102931
Negative:
-1 x -201230105-5 x -40246021-17 x -11837065-23 x -8749135-85 x -2367413-115 x -1749827-391 x -514655-1955 x -102931
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 201,230,105, 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 | 201,230,105 | |
| -1 | -201,230,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 201,230,105.
Example:
1 x 201,230,105 = 201,230,105
and
-1 x -201,230,105 = 201,230,105
Notice both answers equal 201,230,105
With that explanation out of the way, let's continue. Next, we take the number 201,230,105 and divide it by 2:
201,230,105 ÷ 2 = 100,615,052.5
If the quotient is a whole number, then 2 and 100,615,052.5 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 | 201,230,105 | |
| -1 | -201,230,105 |
Now, we try dividing 201,230,105 by 3:
201,230,105 ÷ 3 = 67,076,701.6667
If the quotient is a whole number, then 3 and 67,076,701.6667 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 | 201,230,105 | |
| -1 | -201,230,105 |
Let's try dividing by 4:
201,230,105 ÷ 4 = 50,307,526.25
If the quotient is a whole number, then 4 and 50,307,526.25 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 | 201,230,105 | |
| -1 | 201,230,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 23 | 85 | 115 | 391 | 1,955 | 102,931 | 514,655 | 1,749,827 | 2,367,413 | 8,749,135 | 11,837,065 | 40,246,021 | 201,230,105 |
| -1 | -5 | -17 | -23 | -85 | -115 | -391 | -1,955 | -102,931 | -514,655 | -1,749,827 | -2,367,413 | -8,749,135 | -11,837,065 | -40,246,021 | -201,230,105 |
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