A:
Positive:
1 x 205230555 x 41046117 x 293186535 x 586373383 x 535851531 x 134051915 x 107172681 x 7655
Negative:
-1 x -20523055-5 x -4104611-7 x -2931865-35 x -586373-383 x -53585-1531 x -13405-1915 x -10717-2681 x -7655
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 20,523,055, 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 | 20,523,055 | |
| -1 | -20,523,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,523,055.
Example:
1 x 20,523,055 = 20,523,055
and
-1 x -20,523,055 = 20,523,055
Notice both answers equal 20,523,055
With that explanation out of the way, let's continue. Next, we take the number 20,523,055 and divide it by 2:
20,523,055 ÷ 2 = 10,261,527.5
If the quotient is a whole number, then 2 and 10,261,527.5 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 | 20,523,055 | |
| -1 | -20,523,055 |
Now, we try dividing 20,523,055 by 3:
20,523,055 ÷ 3 = 6,841,018.3333
If the quotient is a whole number, then 3 and 6,841,018.3333 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 | 20,523,055 | |
| -1 | -20,523,055 |
Let's try dividing by 4:
20,523,055 ÷ 4 = 5,130,763.75
If the quotient is a whole number, then 4 and 5,130,763.75 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 | 20,523,055 | |
| -1 | 20,523,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 383 | 1,531 | 1,915 | 2,681 | 7,655 | 10,717 | 13,405 | 53,585 | 586,373 | 2,931,865 | 4,104,611 | 20,523,055 |
| -1 | -5 | -7 | -35 | -383 | -1,531 | -1,915 | -2,681 | -7,655 | -10,717 | -13,405 | -53,585 | -586,373 | -2,931,865 | -4,104,611 | -20,523,055 |
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