A:
Positive:
1 x 2555001355 x 5110002711 x 2322728555 x 4645457197 x 1296955985 x 2593912167 x 11790510835 x 23581
Negative:
-1 x -255500135-5 x -51100027-11 x -23227285-55 x -4645457-197 x -1296955-985 x -259391-2167 x -117905-10835 x -23581
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 255,500,135, 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 | 255,500,135 | |
| -1 | -255,500,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 255,500,135.
Example:
1 x 255,500,135 = 255,500,135
and
-1 x -255,500,135 = 255,500,135
Notice both answers equal 255,500,135
With that explanation out of the way, let's continue. Next, we take the number 255,500,135 and divide it by 2:
255,500,135 ÷ 2 = 127,750,067.5
If the quotient is a whole number, then 2 and 127,750,067.5 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 | 255,500,135 | |
| -1 | -255,500,135 |
Now, we try dividing 255,500,135 by 3:
255,500,135 ÷ 3 = 85,166,711.6667
If the quotient is a whole number, then 3 and 85,166,711.6667 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 | 255,500,135 | |
| -1 | -255,500,135 |
Let's try dividing by 4:
255,500,135 ÷ 4 = 63,875,033.75
If the quotient is a whole number, then 4 and 63,875,033.75 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 | 255,500,135 | |
| -1 | 255,500,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 197 | 985 | 2,167 | 10,835 | 23,581 | 117,905 | 259,391 | 1,296,955 | 4,645,457 | 23,227,285 | 51,100,027 | 255,500,135 |
| -1 | -5 | -11 | -55 | -197 | -985 | -2,167 | -10,835 | -23,581 | -117,905 | -259,391 | -1,296,955 | -4,645,457 | -23,227,285 | -51,100,027 | -255,500,135 |
Here are some more numbers to try:
Try the factor calculator