A:
Positive:
1 x 7713717055 x 15427434113 x 5933628565 x 1186725783 x 9293635415 x 18587271079 x 7148955395 x 142979
Negative:
-1 x -771371705-5 x -154274341-13 x -59336285-65 x -11867257-83 x -9293635-415 x -1858727-1079 x -714895-5395 x -142979
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 771,371,705, 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 | 771,371,705 | |
| -1 | -771,371,705 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 771,371,705.
Example:
1 x 771,371,705 = 771,371,705
and
-1 x -771,371,705 = 771,371,705
Notice both answers equal 771,371,705
With that explanation out of the way, let's continue. Next, we take the number 771,371,705 and divide it by 2:
771,371,705 ÷ 2 = 385,685,852.5
If the quotient is a whole number, then 2 and 385,685,852.5 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 | 771,371,705 | |
| -1 | -771,371,705 |
Now, we try dividing 771,371,705 by 3:
771,371,705 ÷ 3 = 257,123,901.6667
If the quotient is a whole number, then 3 and 257,123,901.6667 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 | 771,371,705 | |
| -1 | -771,371,705 |
Let's try dividing by 4:
771,371,705 ÷ 4 = 192,842,926.25
If the quotient is a whole number, then 4 and 192,842,926.25 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 | 771,371,705 | |
| -1 | 771,371,705 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 83 | 415 | 1,079 | 5,395 | 142,979 | 714,895 | 1,858,727 | 9,293,635 | 11,867,257 | 59,336,285 | 154,274,341 | 771,371,705 |
| -1 | -5 | -13 | -65 | -83 | -415 | -1,079 | -5,395 | -142,979 | -714,895 | -1,858,727 | -9,293,635 | -11,867,257 | -59,336,285 | -154,274,341 | -771,371,705 |
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