A:
Positive:
1 x 2065603455 x 4131206953 x 3897365265 x 779473307 x 6728351535 x 1345672539 x 8135512695 x 16271
Negative:
-1 x -206560345-5 x -41312069-53 x -3897365-265 x -779473-307 x -672835-1535 x -134567-2539 x -81355-12695 x -16271
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 206,560,345, 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 | 206,560,345 | |
| -1 | -206,560,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 206,560,345.
Example:
1 x 206,560,345 = 206,560,345
and
-1 x -206,560,345 = 206,560,345
Notice both answers equal 206,560,345
With that explanation out of the way, let's continue. Next, we take the number 206,560,345 and divide it by 2:
206,560,345 ÷ 2 = 103,280,172.5
If the quotient is a whole number, then 2 and 103,280,172.5 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 | 206,560,345 | |
| -1 | -206,560,345 |
Now, we try dividing 206,560,345 by 3:
206,560,345 ÷ 3 = 68,853,448.3333
If the quotient is a whole number, then 3 and 68,853,448.3333 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 | 206,560,345 | |
| -1 | -206,560,345 |
Let's try dividing by 4:
206,560,345 ÷ 4 = 51,640,086.25
If the quotient is a whole number, then 4 and 51,640,086.25 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 | 206,560,345 | |
| -1 | 206,560,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 265 | 307 | 1,535 | 2,539 | 12,695 | 16,271 | 81,355 | 134,567 | 672,835 | 779,473 | 3,897,365 | 41,312,069 | 206,560,345 |
| -1 | -5 | -53 | -265 | -307 | -1,535 | -2,539 | -12,695 | -16,271 | -81,355 | -134,567 | -672,835 | -779,473 | -3,897,365 | -41,312,069 | -206,560,345 |
Here are some more numbers to try:
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