A:
Positive:
1 x 8558582055 x 17117164173 x 11724085199 x 4300795365 x 2344817995 x 86015911783 x 7263514527 x 58915
Negative:
-1 x -855858205-5 x -171171641-73 x -11724085-199 x -4300795-365 x -2344817-995 x -860159-11783 x -72635-14527 x -58915
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 855,858,205, 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 | 855,858,205 | |
| -1 | -855,858,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 855,858,205.
Example:
1 x 855,858,205 = 855,858,205
and
-1 x -855,858,205 = 855,858,205
Notice both answers equal 855,858,205
With that explanation out of the way, let's continue. Next, we take the number 855,858,205 and divide it by 2:
855,858,205 ÷ 2 = 427,929,102.5
If the quotient is a whole number, then 2 and 427,929,102.5 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 | 855,858,205 | |
| -1 | -855,858,205 |
Now, we try dividing 855,858,205 by 3:
855,858,205 ÷ 3 = 285,286,068.3333
If the quotient is a whole number, then 3 and 285,286,068.3333 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 | 855,858,205 | |
| -1 | -855,858,205 |
Let's try dividing by 4:
855,858,205 ÷ 4 = 213,964,551.25
If the quotient is a whole number, then 4 and 213,964,551.25 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 | 855,858,205 | |
| -1 | 855,858,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 73 | 199 | 365 | 995 | 11,783 | 14,527 | 58,915 | 72,635 | 860,159 | 2,344,817 | 4,300,795 | 11,724,085 | 171,171,641 | 855,858,205 |
| -1 | -5 | -73 | -199 | -365 | -995 | -11,783 | -14,527 | -58,915 | -72,635 | -860,159 | -2,344,817 | -4,300,795 | -11,724,085 | -171,171,641 | -855,858,205 |
Here are some more numbers to try:
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