A:
Positive:
1 x 20703113361 x 339395383 x 2494351103 x 2010011397 x 5214895063 x 408916283 x 329518549 x 24217
Negative:
-1 x -207031133-61 x -3393953-83 x -2494351-103 x -2010011-397 x -521489-5063 x -40891-6283 x -32951-8549 x -24217
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 207,031,133, 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 | 207,031,133 | |
| -1 | -207,031,133 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 207,031,133.
Example:
1 x 207,031,133 = 207,031,133
and
-1 x -207,031,133 = 207,031,133
Notice both answers equal 207,031,133
With that explanation out of the way, let's continue. Next, we take the number 207,031,133 and divide it by 2:
207,031,133 ÷ 2 = 103,515,566.5
If the quotient is a whole number, then 2 and 103,515,566.5 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 | 207,031,133 | |
| -1 | -207,031,133 |
Now, we try dividing 207,031,133 by 3:
207,031,133 ÷ 3 = 69,010,377.6667
If the quotient is a whole number, then 3 and 69,010,377.6667 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 | 207,031,133 | |
| -1 | -207,031,133 |
Let's try dividing by 4:
207,031,133 ÷ 4 = 51,757,783.25
If the quotient is a whole number, then 4 and 51,757,783.25 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 | 207,031,133 | |
| -1 | 207,031,133 |
If you did it right, you will end up with this table:
| 1 | 61 | 83 | 103 | 397 | 5,063 | 6,283 | 8,549 | 24,217 | 32,951 | 40,891 | 521,489 | 2,010,011 | 2,494,351 | 3,393,953 | 207,031,133 |
| -1 | -61 | -83 | -103 | -397 | -5,063 | -6,283 | -8,549 | -24,217 | -32,951 | -40,891 | -521,489 | -2,010,011 | -2,494,351 | -3,393,953 | -207,031,133 |
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