A:
Positive:
1 x 2051311997 x 2930445713 x 1577932343 x 477049349 x 418635191 x 2254189301 x 681499559 x 366961637 x 3220272107 x 973573913 x 524237489 x 27391
Negative:
-1 x -205131199-7 x -29304457-13 x -15779323-43 x -4770493-49 x -4186351-91 x -2254189-301 x -681499-559 x -366961-637 x -322027-2107 x -97357-3913 x -52423-7489 x -27391
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 205,131,199, 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 | 205,131,199 | |
| -1 | -205,131,199 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 205,131,199.
Example:
1 x 205,131,199 = 205,131,199
and
-1 x -205,131,199 = 205,131,199
Notice both answers equal 205,131,199
With that explanation out of the way, let's continue. Next, we take the number 205,131,199 and divide it by 2:
205,131,199 ÷ 2 = 102,565,599.5
If the quotient is a whole number, then 2 and 102,565,599.5 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 | 205,131,199 | |
| -1 | -205,131,199 |
Now, we try dividing 205,131,199 by 3:
205,131,199 ÷ 3 = 68,377,066.3333
If the quotient is a whole number, then 3 and 68,377,066.3333 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 | 205,131,199 | |
| -1 | -205,131,199 |
Let's try dividing by 4:
205,131,199 ÷ 4 = 51,282,799.75
If the quotient is a whole number, then 4 and 51,282,799.75 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 | 205,131,199 | |
| -1 | 205,131,199 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 43 | 49 | 91 | 301 | 559 | 637 | 2,107 | 3,913 | 7,489 | 27,391 | 52,423 | 97,357 | 322,027 | 366,961 | 681,499 | 2,254,189 | 4,186,351 | 4,770,493 | 15,779,323 | 29,304,457 | 205,131,199 |
| -1 | -7 | -13 | -43 | -49 | -91 | -301 | -559 | -637 | -2,107 | -3,913 | -7,489 | -27,391 | -52,423 | -97,357 | -322,027 | -366,961 | -681,499 | -2,254,189 | -4,186,351 | -4,770,493 | -15,779,323 | -29,304,457 | -205,131,199 |
Here are some more numbers to try:
Try the factor calculator