A:
Positive:
1 x 20656034311 x 1877821319 x 10871597209 x 988327359 x 5753772753 x 750313949 x 523076821 x 30283
Negative:
-1 x -206560343-11 x -18778213-19 x -10871597-209 x -988327-359 x -575377-2753 x -75031-3949 x -52307-6821 x -30283
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 206,560,343, 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 | 206,560,343 | |
| -1 | -206,560,343 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 206,560,343.
Example:
1 x 206,560,343 = 206,560,343
and
-1 x -206,560,343 = 206,560,343
Notice both answers equal 206,560,343
With that explanation out of the way, let's continue. Next, we take the number 206,560,343 and divide it by 2:
206,560,343 ÷ 2 = 103,280,171.5
If the quotient is a whole number, then 2 and 103,280,171.5 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 | 206,560,343 | |
| -1 | -206,560,343 |
Now, we try dividing 206,560,343 by 3:
206,560,343 ÷ 3 = 68,853,447.6667
If the quotient is a whole number, then 3 and 68,853,447.6667 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 | 206,560,343 | |
| -1 | -206,560,343 |
Let's try dividing by 4:
206,560,343 ÷ 4 = 51,640,085.75
If the quotient is a whole number, then 4 and 51,640,085.75 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 | 206,560,343 | |
| -1 | 206,560,343 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 209 | 359 | 2,753 | 3,949 | 6,821 | 30,283 | 52,307 | 75,031 | 575,377 | 988,327 | 10,871,597 | 18,778,213 | 206,560,343 |
| -1 | -11 | -19 | -209 | -359 | -2,753 | -3,949 | -6,821 | -30,283 | -52,307 | -75,031 | -575,377 | -988,327 | -10,871,597 | -18,778,213 | -206,560,343 |
Here are some more numbers to try:
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