A:
Positive:
1 x 2082650911 x 189331953 x 392953139 x 149831257 x 81037583 x 357231529 x 136212827 x 7367
Negative:
-1 x -20826509-11 x -1893319-53 x -392953-139 x -149831-257 x -81037-583 x -35723-1529 x -13621-2827 x -7367
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 20,826,509, 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 | 20,826,509 | |
| -1 | -20,826,509 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,826,509.
Example:
1 x 20,826,509 = 20,826,509
and
-1 x -20,826,509 = 20,826,509
Notice both answers equal 20,826,509
With that explanation out of the way, let's continue. Next, we take the number 20,826,509 and divide it by 2:
20,826,509 ÷ 2 = 10,413,254.5
If the quotient is a whole number, then 2 and 10,413,254.5 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 | 20,826,509 | |
| -1 | -20,826,509 |
Now, we try dividing 20,826,509 by 3:
20,826,509 ÷ 3 = 6,942,169.6667
If the quotient is a whole number, then 3 and 6,942,169.6667 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 | 20,826,509 | |
| -1 | -20,826,509 |
Let's try dividing by 4:
20,826,509 ÷ 4 = 5,206,627.25
If the quotient is a whole number, then 4 and 5,206,627.25 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 | 20,826,509 | |
| -1 | 20,826,509 |
If you did it right, you will end up with this table:
| 1 | 11 | 53 | 139 | 257 | 583 | 1,529 | 2,827 | 7,367 | 13,621 | 35,723 | 81,037 | 149,831 | 392,953 | 1,893,319 | 20,826,509 |
| -1 | -11 | -53 | -139 | -257 | -583 | -1,529 | -2,827 | -7,367 | -13,621 | -35,723 | -81,037 | -149,831 | -392,953 | -1,893,319 | -20,826,509 |
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