A:
Positive:
1 x 7706073655 x 15412147311 x 7005521517 x 4532984555 x 1401104385 x 9065969187 x 4120895935 x 824179
Negative:
-1 x -770607365-5 x -154121473-11 x -70055215-17 x -45329845-55 x -14011043-85 x -9065969-187 x -4120895-935 x -824179
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 770,607,365, 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 | 770,607,365 | |
| -1 | -770,607,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 770,607,365.
Example:
1 x 770,607,365 = 770,607,365
and
-1 x -770,607,365 = 770,607,365
Notice both answers equal 770,607,365
With that explanation out of the way, let's continue. Next, we take the number 770,607,365 and divide it by 2:
770,607,365 ÷ 2 = 385,303,682.5
If the quotient is a whole number, then 2 and 385,303,682.5 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 | 770,607,365 | |
| -1 | -770,607,365 |
Now, we try dividing 770,607,365 by 3:
770,607,365 ÷ 3 = 256,869,121.6667
If the quotient is a whole number, then 3 and 256,869,121.6667 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 | 770,607,365 | |
| -1 | -770,607,365 |
Let's try dividing by 4:
770,607,365 ÷ 4 = 192,651,841.25
If the quotient is a whole number, then 4 and 192,651,841.25 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 | 770,607,365 | |
| -1 | 770,607,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 187 | 935 | 824,179 | 4,120,895 | 9,065,969 | 14,011,043 | 45,329,845 | 70,055,215 | 154,121,473 | 770,607,365 |
| -1 | -5 | -11 | -17 | -55 | -85 | -187 | -935 | -824,179 | -4,120,895 | -9,065,969 | -14,011,043 | -45,329,845 | -70,055,215 | -154,121,473 | -770,607,365 |
Here are some more numbers to try:
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