A:
Positive:
1 x 898168711 x 81651713 x 690899107 x 83941143 x 62809587 x 153011177 x 76311391 x 6457
Negative:
-1 x -8981687-11 x -816517-13 x -690899-107 x -83941-143 x -62809-587 x -15301-1177 x -7631-1391 x -6457
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 8,981,687, 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 | 8,981,687 | |
| -1 | -8,981,687 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,981,687.
Example:
1 x 8,981,687 = 8,981,687
and
-1 x -8,981,687 = 8,981,687
Notice both answers equal 8,981,687
With that explanation out of the way, let's continue. Next, we take the number 8,981,687 and divide it by 2:
8,981,687 ÷ 2 = 4,490,843.5
If the quotient is a whole number, then 2 and 4,490,843.5 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 | 8,981,687 | |
| -1 | -8,981,687 |
Now, we try dividing 8,981,687 by 3:
8,981,687 ÷ 3 = 2,993,895.6667
If the quotient is a whole number, then 3 and 2,993,895.6667 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 | 8,981,687 | |
| -1 | -8,981,687 |
Let's try dividing by 4:
8,981,687 ÷ 4 = 2,245,421.75
If the quotient is a whole number, then 4 and 2,245,421.75 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 | 8,981,687 | |
| -1 | 8,981,687 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 107 | 143 | 587 | 1,177 | 1,391 | 6,457 | 7,631 | 15,301 | 62,809 | 83,941 | 690,899 | 816,517 | 8,981,687 |
| -1 | -11 | -13 | -107 | -143 | -587 | -1,177 | -1,391 | -6,457 | -7,631 | -15,301 | -62,809 | -83,941 | -690,899 | -816,517 | -8,981,687 |
Here are some more numbers to try:
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