A:
Positive:
1 x 2008361311 x 182578317 x 1181389187 x 107399211 x 95183509 x 394572321 x 86533587 x 5599
Negative:
-1 x -20083613-11 x -1825783-17 x -1181389-187 x -107399-211 x -95183-509 x -39457-2321 x -8653-3587 x -5599
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 20,083,613, 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 | 20,083,613 | |
| -1 | -20,083,613 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,083,613.
Example:
1 x 20,083,613 = 20,083,613
and
-1 x -20,083,613 = 20,083,613
Notice both answers equal 20,083,613
With that explanation out of the way, let's continue. Next, we take the number 20,083,613 and divide it by 2:
20,083,613 ÷ 2 = 10,041,806.5
If the quotient is a whole number, then 2 and 10,041,806.5 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 | 20,083,613 | |
| -1 | -20,083,613 |
Now, we try dividing 20,083,613 by 3:
20,083,613 ÷ 3 = 6,694,537.6667
If the quotient is a whole number, then 3 and 6,694,537.6667 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 | 20,083,613 | |
| -1 | -20,083,613 |
Let's try dividing by 4:
20,083,613 ÷ 4 = 5,020,903.25
If the quotient is a whole number, then 4 and 5,020,903.25 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 | 20,083,613 | |
| -1 | 20,083,613 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 187 | 211 | 509 | 2,321 | 3,587 | 5,599 | 8,653 | 39,457 | 95,183 | 107,399 | 1,181,389 | 1,825,783 | 20,083,613 |
| -1 | -11 | -17 | -187 | -211 | -509 | -2,321 | -3,587 | -5,599 | -8,653 | -39,457 | -95,183 | -107,399 | -1,181,389 | -1,825,783 | -20,083,613 |
Here are some more numbers to try:
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