A:
Positive:
1 x 2053356655 x 41067133139 x 1477235439 x 467735673 x 305105695 x 2954472195 x 935473365 x 61021
Negative:
-1 x -205335665-5 x -41067133-139 x -1477235-439 x -467735-673 x -305105-695 x -295447-2195 x -93547-3365 x -61021
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 205,335,665, 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 | 205,335,665 | |
| -1 | -205,335,665 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 205,335,665.
Example:
1 x 205,335,665 = 205,335,665
and
-1 x -205,335,665 = 205,335,665
Notice both answers equal 205,335,665
With that explanation out of the way, let's continue. Next, we take the number 205,335,665 and divide it by 2:
205,335,665 ÷ 2 = 102,667,832.5
If the quotient is a whole number, then 2 and 102,667,832.5 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 | 205,335,665 | |
| -1 | -205,335,665 |
Now, we try dividing 205,335,665 by 3:
205,335,665 ÷ 3 = 68,445,221.6667
If the quotient is a whole number, then 3 and 68,445,221.6667 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 | 205,335,665 | |
| -1 | -205,335,665 |
Let's try dividing by 4:
205,335,665 ÷ 4 = 51,333,916.25
If the quotient is a whole number, then 4 and 51,333,916.25 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 | 205,335,665 | |
| -1 | 205,335,665 |
If you did it right, you will end up with this table:
| 1 | 5 | 139 | 439 | 673 | 695 | 2,195 | 3,365 | 61,021 | 93,547 | 295,447 | 305,105 | 467,735 | 1,477,235 | 41,067,133 | 205,335,665 |
| -1 | -5 | -139 | -439 | -673 | -695 | -2,195 | -3,365 | -61,021 | -93,547 | -295,447 | -305,105 | -467,735 | -1,477,235 | -41,067,133 | -205,335,665 |
Here are some more numbers to try:
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