A:
Positive:
1 x 777797911 x 70708923 x 33817371 x 109549253 x 30743433 x 17963781 x 99591633 x 4763
Negative:
-1 x -7777979-11 x -707089-23 x -338173-71 x -109549-253 x -30743-433 x -17963-781 x -9959-1633 x -4763
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 7,777,979, 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 | 7,777,979 | |
| -1 | -7,777,979 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,777,979.
Example:
1 x 7,777,979 = 7,777,979
and
-1 x -7,777,979 = 7,777,979
Notice both answers equal 7,777,979
With that explanation out of the way, let's continue. Next, we take the number 7,777,979 and divide it by 2:
7,777,979 ÷ 2 = 3,888,989.5
If the quotient is a whole number, then 2 and 3,888,989.5 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 | 7,777,979 | |
| -1 | -7,777,979 |
Now, we try dividing 7,777,979 by 3:
7,777,979 ÷ 3 = 2,592,659.6667
If the quotient is a whole number, then 3 and 2,592,659.6667 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 | 7,777,979 | |
| -1 | -7,777,979 |
Let's try dividing by 4:
7,777,979 ÷ 4 = 1,944,494.75
If the quotient is a whole number, then 4 and 1,944,494.75 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 | 7,777,979 | |
| -1 | 7,777,979 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 71 | 253 | 433 | 781 | 1,633 | 4,763 | 9,959 | 17,963 | 30,743 | 109,549 | 338,173 | 707,089 | 7,777,979 |
| -1 | -11 | -23 | -71 | -253 | -433 | -781 | -1,633 | -4,763 | -9,959 | -17,963 | -30,743 | -109,549 | -338,173 | -707,089 | -7,777,979 |
Here are some more numbers to try:
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