A:
Positive:
1 x 887779113 x 68290717 x 522223139 x 63869221 x 40171289 x 307191807 x 49132363 x 3757
Negative:
-1 x -8877791-13 x -682907-17 x -522223-139 x -63869-221 x -40171-289 x -30719-1807 x -4913-2363 x -3757
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 8,877,791, 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 | 8,877,791 | |
| -1 | -8,877,791 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,877,791.
Example:
1 x 8,877,791 = 8,877,791
and
-1 x -8,877,791 = 8,877,791
Notice both answers equal 8,877,791
With that explanation out of the way, let's continue. Next, we take the number 8,877,791 and divide it by 2:
8,877,791 ÷ 2 = 4,438,895.5
If the quotient is a whole number, then 2 and 4,438,895.5 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 | 8,877,791 | |
| -1 | -8,877,791 |
Now, we try dividing 8,877,791 by 3:
8,877,791 ÷ 3 = 2,959,263.6667
If the quotient is a whole number, then 3 and 2,959,263.6667 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 | 8,877,791 | |
| -1 | -8,877,791 |
Let's try dividing by 4:
8,877,791 ÷ 4 = 2,219,447.75
If the quotient is a whole number, then 4 and 2,219,447.75 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 | 8,877,791 | |
| -1 | 8,877,791 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 139 | 221 | 289 | 1,807 | 2,363 | 3,757 | 4,913 | 30,719 | 40,171 | 63,869 | 522,223 | 682,907 | 8,877,791 |
| -1 | -13 | -17 | -139 | -221 | -289 | -1,807 | -2,363 | -3,757 | -4,913 | -30,719 | -40,171 | -63,869 | -522,223 | -682,907 | -8,877,791 |
Here are some more numbers to try:
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