A:
Positive:
1 x 113212555 x 226425111 x 102920543 x 26328555 x 205841215 x 52657473 x 239352365 x 4787
Negative:
-1 x -11321255-5 x -2264251-11 x -1029205-43 x -263285-55 x -205841-215 x -52657-473 x -23935-2365 x -4787
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 11,321,255, 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 | 11,321,255 | |
| -1 | -11,321,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,321,255.
Example:
1 x 11,321,255 = 11,321,255
and
-1 x -11,321,255 = 11,321,255
Notice both answers equal 11,321,255
With that explanation out of the way, let's continue. Next, we take the number 11,321,255 and divide it by 2:
11,321,255 ÷ 2 = 5,660,627.5
If the quotient is a whole number, then 2 and 5,660,627.5 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 | 11,321,255 | |
| -1 | -11,321,255 |
Now, we try dividing 11,321,255 by 3:
11,321,255 ÷ 3 = 3,773,751.6667
If the quotient is a whole number, then 3 and 3,773,751.6667 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 | 11,321,255 | |
| -1 | -11,321,255 |
Let's try dividing by 4:
11,321,255 ÷ 4 = 2,830,313.75
If the quotient is a whole number, then 4 and 2,830,313.75 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 | 11,321,255 | |
| -1 | 11,321,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 43 | 55 | 215 | 473 | 2,365 | 4,787 | 23,935 | 52,657 | 205,841 | 263,285 | 1,029,205 | 2,264,251 | 11,321,255 |
| -1 | -5 | -11 | -43 | -55 | -215 | -473 | -2,365 | -4,787 | -23,935 | -52,657 | -205,841 | -263,285 | -1,029,205 | -2,264,251 | -11,321,255 |
Here are some more numbers to try:
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