A:
Positive:
1 x 84558472713 x 65044979107 x 7902661233 x 36291191391 x 6078972609 x 3241033029 x 27916324931 x 33917
Negative:
-1 x -845584727-13 x -65044979-107 x -7902661-233 x -3629119-1391 x -607897-2609 x -324103-3029 x -279163-24931 x -33917
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 845,584,727, 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 | 845,584,727 | |
| -1 | -845,584,727 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 845,584,727.
Example:
1 x 845,584,727 = 845,584,727
and
-1 x -845,584,727 = 845,584,727
Notice both answers equal 845,584,727
With that explanation out of the way, let's continue. Next, we take the number 845,584,727 and divide it by 2:
845,584,727 ÷ 2 = 422,792,363.5
If the quotient is a whole number, then 2 and 422,792,363.5 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 | 845,584,727 | |
| -1 | -845,584,727 |
Now, we try dividing 845,584,727 by 3:
845,584,727 ÷ 3 = 281,861,575.6667
If the quotient is a whole number, then 3 and 281,861,575.6667 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 | 845,584,727 | |
| -1 | -845,584,727 |
Let's try dividing by 4:
845,584,727 ÷ 4 = 211,396,181.75
If the quotient is a whole number, then 4 and 211,396,181.75 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 | 845,584,727 | |
| -1 | 845,584,727 |
If you did it right, you will end up with this table:
| 1 | 13 | 107 | 233 | 1,391 | 2,609 | 3,029 | 24,931 | 33,917 | 279,163 | 324,103 | 607,897 | 3,629,119 | 7,902,661 | 65,044,979 | 845,584,727 |
| -1 | -13 | -107 | -233 | -1,391 | -2,609 | -3,029 | -24,931 | -33,917 | -279,163 | -324,103 | -607,897 | -3,629,119 | -7,902,661 | -65,044,979 | -845,584,727 |
Here are some more numbers to try:
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