A:
Positive:
1 x 7867750855 x 15735501719 x 4140921543 x 1829709595 x 8281843215 x 3659419817 x 9630054085 x 192601
Negative:
-1 x -786775085-5 x -157355017-19 x -41409215-43 x -18297095-95 x -8281843-215 x -3659419-817 x -963005-4085 x -192601
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 786,775,085, 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 | 786,775,085 | |
| -1 | -786,775,085 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 786,775,085.
Example:
1 x 786,775,085 = 786,775,085
and
-1 x -786,775,085 = 786,775,085
Notice both answers equal 786,775,085
With that explanation out of the way, let's continue. Next, we take the number 786,775,085 and divide it by 2:
786,775,085 ÷ 2 = 393,387,542.5
If the quotient is a whole number, then 2 and 393,387,542.5 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 | 786,775,085 | |
| -1 | -786,775,085 |
Now, we try dividing 786,775,085 by 3:
786,775,085 ÷ 3 = 262,258,361.6667
If the quotient is a whole number, then 3 and 262,258,361.6667 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 | 786,775,085 | |
| -1 | -786,775,085 |
Let's try dividing by 4:
786,775,085 ÷ 4 = 196,693,771.25
If the quotient is a whole number, then 4 and 196,693,771.25 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 | 786,775,085 | |
| -1 | 786,775,085 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 43 | 95 | 215 | 817 | 4,085 | 192,601 | 963,005 | 3,659,419 | 8,281,843 | 18,297,095 | 41,409,215 | 157,355,017 | 786,775,085 |
| -1 | -5 | -19 | -43 | -95 | -215 | -817 | -4,085 | -192,601 | -963,005 | -3,659,419 | -8,281,843 | -18,297,095 | -41,409,215 | -157,355,017 | -786,775,085 |
Here are some more numbers to try:
Try the factor calculator