A:
Positive:
1 x 1315402555 x 263080517 x 1879146511 x 1195820535 x 375829349 x 268449555 x 239164177 x 1708315245 x 536899385 x 341663539 x 2440452695 x 48809
Negative:
-1 x -131540255-5 x -26308051-7 x -18791465-11 x -11958205-35 x -3758293-49 x -2684495-55 x -2391641-77 x -1708315-245 x -536899-385 x -341663-539 x -244045-2695 x -48809
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 131,540,255, 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 | 131,540,255 | |
| -1 | -131,540,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 131,540,255.
Example:
1 x 131,540,255 = 131,540,255
and
-1 x -131,540,255 = 131,540,255
Notice both answers equal 131,540,255
With that explanation out of the way, let's continue. Next, we take the number 131,540,255 and divide it by 2:
131,540,255 ÷ 2 = 65,770,127.5
If the quotient is a whole number, then 2 and 65,770,127.5 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 | 131,540,255 | |
| -1 | -131,540,255 |
Now, we try dividing 131,540,255 by 3:
131,540,255 ÷ 3 = 43,846,751.6667
If the quotient is a whole number, then 3 and 43,846,751.6667 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 | 131,540,255 | |
| -1 | -131,540,255 |
Let's try dividing by 4:
131,540,255 ÷ 4 = 32,885,063.75
If the quotient is a whole number, then 4 and 32,885,063.75 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 | 131,540,255 | |
| -1 | 131,540,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 49 | 55 | 77 | 245 | 385 | 539 | 2,695 | 48,809 | 244,045 | 341,663 | 536,899 | 1,708,315 | 2,391,641 | 2,684,495 | 3,758,293 | 11,958,205 | 18,791,465 | 26,308,051 | 131,540,255 |
| -1 | -5 | -7 | -11 | -35 | -49 | -55 | -77 | -245 | -385 | -539 | -2,695 | -48,809 | -244,045 | -341,663 | -536,899 | -1,708,315 | -2,391,641 | -2,684,495 | -3,758,293 | -11,958,205 | -18,791,465 | -26,308,051 | -131,540,255 |
Here are some more numbers to try:
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