A:
Positive:
1 x 3077578755 x 6155157525 x 12310315125 x 2462063569 x 5408752845 x 1081754327 x 7112514225 x 21635
Negative:
-1 x -307757875-5 x -61551575-25 x -12310315-125 x -2462063-569 x -540875-2845 x -108175-4327 x -71125-14225 x -21635
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 307,757,875, 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 | 307,757,875 | |
| -1 | -307,757,875 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 307,757,875.
Example:
1 x 307,757,875 = 307,757,875
and
-1 x -307,757,875 = 307,757,875
Notice both answers equal 307,757,875
With that explanation out of the way, let's continue. Next, we take the number 307,757,875 and divide it by 2:
307,757,875 ÷ 2 = 153,878,937.5
If the quotient is a whole number, then 2 and 153,878,937.5 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 | 307,757,875 | |
| -1 | -307,757,875 |
Now, we try dividing 307,757,875 by 3:
307,757,875 ÷ 3 = 102,585,958.3333
If the quotient is a whole number, then 3 and 102,585,958.3333 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 | 307,757,875 | |
| -1 | -307,757,875 |
Let's try dividing by 4:
307,757,875 ÷ 4 = 76,939,468.75
If the quotient is a whole number, then 4 and 76,939,468.75 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 | 307,757,875 | |
| -1 | 307,757,875 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 569 | 2,845 | 4,327 | 14,225 | 21,635 | 71,125 | 108,175 | 540,875 | 2,462,063 | 12,310,315 | 61,551,575 | 307,757,875 |
| -1 | -5 | -25 | -125 | -569 | -2,845 | -4,327 | -14,225 | -21,635 | -71,125 | -108,175 | -540,875 | -2,462,063 | -12,310,315 | -61,551,575 | -307,757,875 |
Here are some more numbers to try:
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