A:
Positive:
1 x 992871113 x 76374731 x 32028171 x 139841347 x 28613403 x 24637923 x 107572201 x 4511
Negative:
-1 x -9928711-13 x -763747-31 x -320281-71 x -139841-347 x -28613-403 x -24637-923 x -10757-2201 x -4511
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 9,928,711, 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 | 9,928,711 | |
| -1 | -9,928,711 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 9,928,711.
Example:
1 x 9,928,711 = 9,928,711
and
-1 x -9,928,711 = 9,928,711
Notice both answers equal 9,928,711
With that explanation out of the way, let's continue. Next, we take the number 9,928,711 and divide it by 2:
9,928,711 ÷ 2 = 4,964,355.5
If the quotient is a whole number, then 2 and 4,964,355.5 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 | 9,928,711 | |
| -1 | -9,928,711 |
Now, we try dividing 9,928,711 by 3:
9,928,711 ÷ 3 = 3,309,570.3333
If the quotient is a whole number, then 3 and 3,309,570.3333 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 | 9,928,711 | |
| -1 | -9,928,711 |
Let's try dividing by 4:
9,928,711 ÷ 4 = 2,482,177.75
If the quotient is a whole number, then 4 and 2,482,177.75 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 | 9,928,711 | |
| -1 | 9,928,711 |
If you did it right, you will end up with this table:
| 1 | 13 | 31 | 71 | 347 | 403 | 923 | 2,201 | 4,511 | 10,757 | 24,637 | 28,613 | 139,841 | 320,281 | 763,747 | 9,928,711 |
| -1 | -13 | -31 | -71 | -347 | -403 | -923 | -2,201 | -4,511 | -10,757 | -24,637 | -28,613 | -139,841 | -320,281 | -763,747 | -9,928,711 |
Here are some more numbers to try:
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