A:
Positive:
1 x 2055500155 x 4111000311 x 1868636541 x 501341555 x 3737273205 x 1002683451 x 4557652255 x 91153
Negative:
-1 x -205550015-5 x -41110003-11 x -18686365-41 x -5013415-55 x -3737273-205 x -1002683-451 x -455765-2255 x -91153
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 205,550,015, 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 | 205,550,015 | |
| -1 | -205,550,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 205,550,015.
Example:
1 x 205,550,015 = 205,550,015
and
-1 x -205,550,015 = 205,550,015
Notice both answers equal 205,550,015
With that explanation out of the way, let's continue. Next, we take the number 205,550,015 and divide it by 2:
205,550,015 ÷ 2 = 102,775,007.5
If the quotient is a whole number, then 2 and 102,775,007.5 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 | 205,550,015 | |
| -1 | -205,550,015 |
Now, we try dividing 205,550,015 by 3:
205,550,015 ÷ 3 = 68,516,671.6667
If the quotient is a whole number, then 3 and 68,516,671.6667 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 | 205,550,015 | |
| -1 | -205,550,015 |
Let's try dividing by 4:
205,550,015 ÷ 4 = 51,387,503.75
If the quotient is a whole number, then 4 and 51,387,503.75 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 | 205,550,015 | |
| -1 | 205,550,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 41 | 55 | 205 | 451 | 2,255 | 91,153 | 455,765 | 1,002,683 | 3,737,273 | 5,013,415 | 18,686,365 | 41,110,003 | 205,550,015 |
| -1 | -5 | -11 | -41 | -55 | -205 | -451 | -2,255 | -91,153 | -455,765 | -1,002,683 | -3,737,273 | -5,013,415 | -18,686,365 | -41,110,003 | -205,550,015 |
Here are some more numbers to try:
Try the factor calculator