A:
Positive:
1 x 907091911 x 82462913 x 697763143 x 63433229 x 39611277 x 327472519 x 36012977 x 3047
Negative:
-1 x -9070919-11 x -824629-13 x -697763-143 x -63433-229 x -39611-277 x -32747-2519 x -3601-2977 x -3047
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 9,070,919, 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 | 9,070,919 | |
| -1 | -9,070,919 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 9,070,919.
Example:
1 x 9,070,919 = 9,070,919
and
-1 x -9,070,919 = 9,070,919
Notice both answers equal 9,070,919
With that explanation out of the way, let's continue. Next, we take the number 9,070,919 and divide it by 2:
9,070,919 ÷ 2 = 4,535,459.5
If the quotient is a whole number, then 2 and 4,535,459.5 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 | 9,070,919 | |
| -1 | -9,070,919 |
Now, we try dividing 9,070,919 by 3:
9,070,919 ÷ 3 = 3,023,639.6667
If the quotient is a whole number, then 3 and 3,023,639.6667 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 | 9,070,919 | |
| -1 | -9,070,919 |
Let's try dividing by 4:
9,070,919 ÷ 4 = 2,267,729.75
If the quotient is a whole number, then 4 and 2,267,729.75 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 | 9,070,919 | |
| -1 | 9,070,919 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 143 | 229 | 277 | 2,519 | 2,977 | 3,047 | 3,601 | 32,747 | 39,611 | 63,433 | 697,763 | 824,629 | 9,070,919 |
| -1 | -11 | -13 | -143 | -229 | -277 | -2,519 | -2,977 | -3,047 | -3,601 | -32,747 | -39,611 | -63,433 | -697,763 | -824,629 | -9,070,919 |
Here are some more numbers to try:
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