A:
Positive:
1 x 77743664911 x 70676059223 x 3486263557 x 1395757569 x 13663212453 x 3169336127 x 1268876259 x 124211
Negative:
-1 x -777436649-11 x -70676059-223 x -3486263-557 x -1395757-569 x -1366321-2453 x -316933-6127 x -126887-6259 x -124211
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 777,436,649, 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 | 777,436,649 | |
| -1 | -777,436,649 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 777,436,649.
Example:
1 x 777,436,649 = 777,436,649
and
-1 x -777,436,649 = 777,436,649
Notice both answers equal 777,436,649
With that explanation out of the way, let's continue. Next, we take the number 777,436,649 and divide it by 2:
777,436,649 ÷ 2 = 388,718,324.5
If the quotient is a whole number, then 2 and 388,718,324.5 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 | 777,436,649 | |
| -1 | -777,436,649 |
Now, we try dividing 777,436,649 by 3:
777,436,649 ÷ 3 = 259,145,549.6667
If the quotient is a whole number, then 3 and 259,145,549.6667 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 | 777,436,649 | |
| -1 | -777,436,649 |
Let's try dividing by 4:
777,436,649 ÷ 4 = 194,359,162.25
If the quotient is a whole number, then 4 and 194,359,162.25 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 | 777,436,649 | |
| -1 | 777,436,649 |
If you did it right, you will end up with this table:
| 1 | 11 | 223 | 557 | 569 | 2,453 | 6,127 | 6,259 | 124,211 | 126,887 | 316,933 | 1,366,321 | 1,395,757 | 3,486,263 | 70,676,059 | 777,436,649 |
| -1 | -11 | -223 | -557 | -569 | -2,453 | -6,127 | -6,259 | -124,211 | -126,887 | -316,933 | -1,366,321 | -1,395,757 | -3,486,263 | -70,676,059 | -777,436,649 |
Here are some more numbers to try:
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