A:
Positive:
1 x 3080645355 x 6161290729 x 10622915127 x 2425705145 x 2124583635 x 4851413683 x 8364516729 x 18415
Negative:
-1 x -308064535-5 x -61612907-29 x -10622915-127 x -2425705-145 x -2124583-635 x -485141-3683 x -83645-16729 x -18415
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 308,064,535, 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 | 308,064,535 | |
| -1 | -308,064,535 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 308,064,535.
Example:
1 x 308,064,535 = 308,064,535
and
-1 x -308,064,535 = 308,064,535
Notice both answers equal 308,064,535
With that explanation out of the way, let's continue. Next, we take the number 308,064,535 and divide it by 2:
308,064,535 ÷ 2 = 154,032,267.5
If the quotient is a whole number, then 2 and 154,032,267.5 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 | 308,064,535 | |
| -1 | -308,064,535 |
Now, we try dividing 308,064,535 by 3:
308,064,535 ÷ 3 = 102,688,178.3333
If the quotient is a whole number, then 3 and 102,688,178.3333 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 | 308,064,535 | |
| -1 | -308,064,535 |
Let's try dividing by 4:
308,064,535 ÷ 4 = 77,016,133.75
If the quotient is a whole number, then 4 and 77,016,133.75 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 | 308,064,535 | |
| -1 | 308,064,535 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 127 | 145 | 635 | 3,683 | 16,729 | 18,415 | 83,645 | 485,141 | 2,124,583 | 2,425,705 | 10,622,915 | 61,612,907 | 308,064,535 |
| -1 | -5 | -29 | -127 | -145 | -635 | -3,683 | -16,729 | -18,415 | -83,645 | -485,141 | -2,124,583 | -2,425,705 | -10,622,915 | -61,612,907 | -308,064,535 |
Here are some more numbers to try:
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