A:
Positive:
1 x 3097038355 x 619407677 x 4424340535 x 88486812251 x 1375853931 x 7878511255 x 2751715757 x 19655
Negative:
-1 x -309703835-5 x -61940767-7 x -44243405-35 x -8848681-2251 x -137585-3931 x -78785-11255 x -27517-15757 x -19655
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 309,703,835, 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 | 309,703,835 | |
| -1 | -309,703,835 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 309,703,835.
Example:
1 x 309,703,835 = 309,703,835
and
-1 x -309,703,835 = 309,703,835
Notice both answers equal 309,703,835
With that explanation out of the way, let's continue. Next, we take the number 309,703,835 and divide it by 2:
309,703,835 ÷ 2 = 154,851,917.5
If the quotient is a whole number, then 2 and 154,851,917.5 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 | 309,703,835 | |
| -1 | -309,703,835 |
Now, we try dividing 309,703,835 by 3:
309,703,835 ÷ 3 = 103,234,611.6667
If the quotient is a whole number, then 3 and 103,234,611.6667 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 | 309,703,835 | |
| -1 | -309,703,835 |
Let's try dividing by 4:
309,703,835 ÷ 4 = 77,425,958.75
If the quotient is a whole number, then 4 and 77,425,958.75 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 | 309,703,835 | |
| -1 | 309,703,835 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 2,251 | 3,931 | 11,255 | 15,757 | 19,655 | 27,517 | 78,785 | 137,585 | 8,848,681 | 44,243,405 | 61,940,767 | 309,703,835 |
| -1 | -5 | -7 | -35 | -2,251 | -3,931 | -11,255 | -15,757 | -19,655 | -27,517 | -78,785 | -137,585 | -8,848,681 | -44,243,405 | -61,940,767 | -309,703,835 |
Here are some more numbers to try:
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