A:
Positive:
1 x 2042424055 x 4084848137 x 5520065185 x 1104013613 x 3331851801 x 1134053065 x 666379005 x 22681
Negative:
-1 x -204242405-5 x -40848481-37 x -5520065-185 x -1104013-613 x -333185-1801 x -113405-3065 x -66637-9005 x -22681
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 204,242,405, 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 | 204,242,405 | |
| -1 | -204,242,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 204,242,405.
Example:
1 x 204,242,405 = 204,242,405
and
-1 x -204,242,405 = 204,242,405
Notice both answers equal 204,242,405
With that explanation out of the way, let's continue. Next, we take the number 204,242,405 and divide it by 2:
204,242,405 ÷ 2 = 102,121,202.5
If the quotient is a whole number, then 2 and 102,121,202.5 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 | 204,242,405 | |
| -1 | -204,242,405 |
Now, we try dividing 204,242,405 by 3:
204,242,405 ÷ 3 = 68,080,801.6667
If the quotient is a whole number, then 3 and 68,080,801.6667 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 | 204,242,405 | |
| -1 | -204,242,405 |
Let's try dividing by 4:
204,242,405 ÷ 4 = 51,060,601.25
If the quotient is a whole number, then 4 and 51,060,601.25 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 | 204,242,405 | |
| -1 | 204,242,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 613 | 1,801 | 3,065 | 9,005 | 22,681 | 66,637 | 113,405 | 333,185 | 1,104,013 | 5,520,065 | 40,848,481 | 204,242,405 |
| -1 | -5 | -37 | -185 | -613 | -1,801 | -3,065 | -9,005 | -22,681 | -66,637 | -113,405 | -333,185 | -1,104,013 | -5,520,065 | -40,848,481 | -204,242,405 |
Here are some more numbers to try:
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