A:
Positive:
1 x 2551225555 x 5102451123 x 11092285115 x 22184571423 x 1792851559 x 1636457115 x 358577795 x 32729
Negative:
-1 x -255122555-5 x -51024511-23 x -11092285-115 x -2218457-1423 x -179285-1559 x -163645-7115 x -35857-7795 x -32729
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 255,122,555, 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 | 255,122,555 | |
| -1 | -255,122,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 255,122,555.
Example:
1 x 255,122,555 = 255,122,555
and
-1 x -255,122,555 = 255,122,555
Notice both answers equal 255,122,555
With that explanation out of the way, let's continue. Next, we take the number 255,122,555 and divide it by 2:
255,122,555 ÷ 2 = 127,561,277.5
If the quotient is a whole number, then 2 and 127,561,277.5 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 | 255,122,555 | |
| -1 | -255,122,555 |
Now, we try dividing 255,122,555 by 3:
255,122,555 ÷ 3 = 85,040,851.6667
If the quotient is a whole number, then 3 and 85,040,851.6667 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 | 255,122,555 | |
| -1 | -255,122,555 |
Let's try dividing by 4:
255,122,555 ÷ 4 = 63,780,638.75
If the quotient is a whole number, then 4 and 63,780,638.75 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 | 255,122,555 | |
| -1 | 255,122,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 1,423 | 1,559 | 7,115 | 7,795 | 32,729 | 35,857 | 163,645 | 179,285 | 2,218,457 | 11,092,285 | 51,024,511 | 255,122,555 |
| -1 | -5 | -23 | -115 | -1,423 | -1,559 | -7,115 | -7,795 | -32,729 | -35,857 | -163,645 | -179,285 | -2,218,457 | -11,092,285 | -51,024,511 | -255,122,555 |
Here are some more numbers to try:
Try the factor calculator