A:
Positive:
1 x 99839117 x 142627319 x 525469133 x 75067271 x 36841277 x 360431897 x 52631939 x 5149
Negative:
-1 x -9983911-7 x -1426273-19 x -525469-133 x -75067-271 x -36841-277 x -36043-1897 x -5263-1939 x -5149
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 9,983,911, 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 | 9,983,911 | |
| -1 | -9,983,911 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 9,983,911.
Example:
1 x 9,983,911 = 9,983,911
and
-1 x -9,983,911 = 9,983,911
Notice both answers equal 9,983,911
With that explanation out of the way, let's continue. Next, we take the number 9,983,911 and divide it by 2:
9,983,911 ÷ 2 = 4,991,955.5
If the quotient is a whole number, then 2 and 4,991,955.5 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 | 9,983,911 | |
| -1 | -9,983,911 |
Now, we try dividing 9,983,911 by 3:
9,983,911 ÷ 3 = 3,327,970.3333
If the quotient is a whole number, then 3 and 3,327,970.3333 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 | 9,983,911 | |
| -1 | -9,983,911 |
Let's try dividing by 4:
9,983,911 ÷ 4 = 2,495,977.75
If the quotient is a whole number, then 4 and 2,495,977.75 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 | 9,983,911 | |
| -1 | 9,983,911 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 271 | 277 | 1,897 | 1,939 | 5,149 | 5,263 | 36,043 | 36,841 | 75,067 | 525,469 | 1,426,273 | 9,983,911 |
| -1 | -7 | -19 | -133 | -271 | -277 | -1,897 | -1,939 | -5,149 | -5,263 | -36,043 | -36,841 | -75,067 | -525,469 | -1,426,273 | -9,983,911 |
Here are some more numbers to try:
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