A:
Positive:
1 x 1007666455 x 201533297 x 1439523535 x 287904773 x 1380365365 x 276073511 x 1971952555 x 39439
Negative:
-1 x -100766645-5 x -20153329-7 x -14395235-35 x -2879047-73 x -1380365-365 x -276073-511 x -197195-2555 x -39439
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 100,766,645, 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 | 100,766,645 | |
| -1 | -100,766,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 100,766,645.
Example:
1 x 100,766,645 = 100,766,645
and
-1 x -100,766,645 = 100,766,645
Notice both answers equal 100,766,645
With that explanation out of the way, let's continue. Next, we take the number 100,766,645 and divide it by 2:
100,766,645 ÷ 2 = 50,383,322.5
If the quotient is a whole number, then 2 and 50,383,322.5 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 | 100,766,645 | |
| -1 | -100,766,645 |
Now, we try dividing 100,766,645 by 3:
100,766,645 ÷ 3 = 33,588,881.6667
If the quotient is a whole number, then 3 and 33,588,881.6667 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 | 100,766,645 | |
| -1 | -100,766,645 |
Let's try dividing by 4:
100,766,645 ÷ 4 = 25,191,661.25
If the quotient is a whole number, then 4 and 25,191,661.25 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 | 100,766,645 | |
| -1 | 100,766,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 73 | 365 | 511 | 2,555 | 39,439 | 197,195 | 276,073 | 1,380,365 | 2,879,047 | 14,395,235 | 20,153,329 | 100,766,645 |
| -1 | -5 | -7 | -35 | -73 | -365 | -511 | -2,555 | -39,439 | -197,195 | -276,073 | -1,380,365 | -2,879,047 | -14,395,235 | -20,153,329 | -100,766,645 |
Here are some more numbers to try:
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