A:
Positive:
1 x 208225017 x 297464317 x 122485349 x 424949119 x 174979343 x 60707833 x 249973571 x 5831
Negative:
-1 x -20822501-7 x -2974643-17 x -1224853-49 x -424949-119 x -174979-343 x -60707-833 x -24997-3571 x -5831
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 20,822,501, 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 | 20,822,501 | |
| -1 | -20,822,501 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,822,501.
Example:
1 x 20,822,501 = 20,822,501
and
-1 x -20,822,501 = 20,822,501
Notice both answers equal 20,822,501
With that explanation out of the way, let's continue. Next, we take the number 20,822,501 and divide it by 2:
20,822,501 ÷ 2 = 10,411,250.5
If the quotient is a whole number, then 2 and 10,411,250.5 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 | 20,822,501 | |
| -1 | -20,822,501 |
Now, we try dividing 20,822,501 by 3:
20,822,501 ÷ 3 = 6,940,833.6667
If the quotient is a whole number, then 3 and 6,940,833.6667 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 | 20,822,501 | |
| -1 | -20,822,501 |
Let's try dividing by 4:
20,822,501 ÷ 4 = 5,205,625.25
If the quotient is a whole number, then 4 and 5,205,625.25 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 | 20,822,501 | |
| -1 | 20,822,501 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 49 | 119 | 343 | 833 | 3,571 | 5,831 | 24,997 | 60,707 | 174,979 | 424,949 | 1,224,853 | 2,974,643 | 20,822,501 |
| -1 | -7 | -17 | -49 | -119 | -343 | -833 | -3,571 | -5,831 | -24,997 | -60,707 | -174,979 | -424,949 | -1,224,853 | -2,974,643 | -20,822,501 |
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