A:
Positive:
1 x 758686855 x 1517373737 x 2050505185 x 410101397 x 1911051033 x 734451985 x 382215165 x 14689
Negative:
-1 x -75868685-5 x -15173737-37 x -2050505-185 x -410101-397 x -191105-1033 x -73445-1985 x -38221-5165 x -14689
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 75,868,685, 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 | 75,868,685 | |
| -1 | -75,868,685 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 75,868,685.
Example:
1 x 75,868,685 = 75,868,685
and
-1 x -75,868,685 = 75,868,685
Notice both answers equal 75,868,685
With that explanation out of the way, let's continue. Next, we take the number 75,868,685 and divide it by 2:
75,868,685 ÷ 2 = 37,934,342.5
If the quotient is a whole number, then 2 and 37,934,342.5 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 | 75,868,685 | |
| -1 | -75,868,685 |
Now, we try dividing 75,868,685 by 3:
75,868,685 ÷ 3 = 25,289,561.6667
If the quotient is a whole number, then 3 and 25,289,561.6667 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 | 75,868,685 | |
| -1 | -75,868,685 |
Let's try dividing by 4:
75,868,685 ÷ 4 = 18,967,171.25
If the quotient is a whole number, then 4 and 18,967,171.25 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 | 75,868,685 | |
| -1 | 75,868,685 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 397 | 1,033 | 1,985 | 5,165 | 14,689 | 38,221 | 73,445 | 191,105 | 410,101 | 2,050,505 | 15,173,737 | 75,868,685 |
| -1 | -5 | -37 | -185 | -397 | -1,033 | -1,985 | -5,165 | -14,689 | -38,221 | -73,445 | -191,105 | -410,101 | -2,050,505 | -15,173,737 | -75,868,685 |
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