A:
Positive:
1 x 78887677713 x 6068282941 x 19240897533 x 1480069641 x 12306972309 x 3416538333 x 9466926281 x 30017
Negative:
-1 x -788876777-13 x -60682829-41 x -19240897-533 x -1480069-641 x -1230697-2309 x -341653-8333 x -94669-26281 x -30017
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 788,876,777, 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 | 788,876,777 | |
| -1 | -788,876,777 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 788,876,777.
Example:
1 x 788,876,777 = 788,876,777
and
-1 x -788,876,777 = 788,876,777
Notice both answers equal 788,876,777
With that explanation out of the way, let's continue. Next, we take the number 788,876,777 and divide it by 2:
788,876,777 ÷ 2 = 394,438,388.5
If the quotient is a whole number, then 2 and 394,438,388.5 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 | 788,876,777 | |
| -1 | -788,876,777 |
Now, we try dividing 788,876,777 by 3:
788,876,777 ÷ 3 = 262,958,925.6667
If the quotient is a whole number, then 3 and 262,958,925.6667 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 | 788,876,777 | |
| -1 | -788,876,777 |
Let's try dividing by 4:
788,876,777 ÷ 4 = 197,219,194.25
If the quotient is a whole number, then 4 and 197,219,194.25 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 | 788,876,777 | |
| -1 | 788,876,777 |
If you did it right, you will end up with this table:
| 1 | 13 | 41 | 533 | 641 | 2,309 | 8,333 | 26,281 | 30,017 | 94,669 | 341,653 | 1,230,697 | 1,480,069 | 19,240,897 | 60,682,829 | 788,876,777 |
| -1 | -13 | -41 | -533 | -641 | -2,309 | -8,333 | -26,281 | -30,017 | -94,669 | -341,653 | -1,230,697 | -1,480,069 | -19,240,897 | -60,682,829 | -788,876,777 |
Here are some more numbers to try:
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