A:
Positive:
1 x 796778997 x 1138255779 x 1008581149 x 534751553 x 144083967 x 823971043 x 763936769 x 11771
Negative:
-1 x -79677899-7 x -11382557-79 x -1008581-149 x -534751-553 x -144083-967 x -82397-1043 x -76393-6769 x -11771
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 79,677,899, 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 | 79,677,899 | |
| -1 | -79,677,899 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 79,677,899.
Example:
1 x 79,677,899 = 79,677,899
and
-1 x -79,677,899 = 79,677,899
Notice both answers equal 79,677,899
With that explanation out of the way, let's continue. Next, we take the number 79,677,899 and divide it by 2:
79,677,899 ÷ 2 = 39,838,949.5
If the quotient is a whole number, then 2 and 39,838,949.5 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 | 79,677,899 | |
| -1 | -79,677,899 |
Now, we try dividing 79,677,899 by 3:
79,677,899 ÷ 3 = 26,559,299.6667
If the quotient is a whole number, then 3 and 26,559,299.6667 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 | 79,677,899 | |
| -1 | -79,677,899 |
Let's try dividing by 4:
79,677,899 ÷ 4 = 19,919,474.75
If the quotient is a whole number, then 4 and 19,919,474.75 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 | 79,677,899 | |
| -1 | 79,677,899 |
If you did it right, you will end up with this table:
| 1 | 7 | 79 | 149 | 553 | 967 | 1,043 | 6,769 | 11,771 | 76,393 | 82,397 | 144,083 | 534,751 | 1,008,581 | 11,382,557 | 79,677,899 |
| -1 | -7 | -79 | -149 | -553 | -967 | -1,043 | -6,769 | -11,771 | -76,393 | -82,397 | -144,083 | -534,751 | -1,008,581 | -11,382,557 | -79,677,899 |
Here are some more numbers to try:
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