A:
Positive:
1 x 2055768555 x 4111537111 x 1868880555 x 3737761569 x 3612952845 x 722596259 x 328456569 x 31295
Negative:
-1 x -205576855-5 x -41115371-11 x -18688805-55 x -3737761-569 x -361295-2845 x -72259-6259 x -32845-6569 x -31295
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 205,576,855, 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 | 205,576,855 | |
| -1 | -205,576,855 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 205,576,855.
Example:
1 x 205,576,855 = 205,576,855
and
-1 x -205,576,855 = 205,576,855
Notice both answers equal 205,576,855
With that explanation out of the way, let's continue. Next, we take the number 205,576,855 and divide it by 2:
205,576,855 ÷ 2 = 102,788,427.5
If the quotient is a whole number, then 2 and 102,788,427.5 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 | 205,576,855 | |
| -1 | -205,576,855 |
Now, we try dividing 205,576,855 by 3:
205,576,855 ÷ 3 = 68,525,618.3333
If the quotient is a whole number, then 3 and 68,525,618.3333 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 | 205,576,855 | |
| -1 | -205,576,855 |
Let's try dividing by 4:
205,576,855 ÷ 4 = 51,394,213.75
If the quotient is a whole number, then 4 and 51,394,213.75 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 | 205,576,855 | |
| -1 | 205,576,855 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 569 | 2,845 | 6,259 | 6,569 | 31,295 | 32,845 | 72,259 | 361,295 | 3,737,761 | 18,688,805 | 41,115,371 | 205,576,855 |
| -1 | -5 | -11 | -55 | -569 | -2,845 | -6,259 | -6,569 | -31,295 | -32,845 | -72,259 | -361,295 | -3,737,761 | -18,688,805 | -41,115,371 | -205,576,855 |
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