A:
Positive:
1 x 32875872711 x 2988715737 x 8885371407 x 807761653 x 5034591237 x 2657717183 x 4576913607 x 24161
Negative:
-1 x -328758727-11 x -29887157-37 x -8885371-407 x -807761-653 x -503459-1237 x -265771-7183 x -45769-13607 x -24161
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 328,758,727, 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 | 328,758,727 | |
| -1 | -328,758,727 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 328,758,727.
Example:
1 x 328,758,727 = 328,758,727
and
-1 x -328,758,727 = 328,758,727
Notice both answers equal 328,758,727
With that explanation out of the way, let's continue. Next, we take the number 328,758,727 and divide it by 2:
328,758,727 ÷ 2 = 164,379,363.5
If the quotient is a whole number, then 2 and 164,379,363.5 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 | 328,758,727 | |
| -1 | -328,758,727 |
Now, we try dividing 328,758,727 by 3:
328,758,727 ÷ 3 = 109,586,242.3333
If the quotient is a whole number, then 3 and 109,586,242.3333 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 | 328,758,727 | |
| -1 | -328,758,727 |
Let's try dividing by 4:
328,758,727 ÷ 4 = 82,189,681.75
If the quotient is a whole number, then 4 and 82,189,681.75 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 | 328,758,727 | |
| -1 | 328,758,727 |
If you did it right, you will end up with this table:
| 1 | 11 | 37 | 407 | 653 | 1,237 | 7,183 | 13,607 | 24,161 | 45,769 | 265,771 | 503,459 | 807,761 | 8,885,371 | 29,887,157 | 328,758,727 |
| -1 | -11 | -37 | -407 | -653 | -1,237 | -7,183 | -13,607 | -24,161 | -45,769 | -265,771 | -503,459 | -807,761 | -8,885,371 | -29,887,157 | -328,758,727 |
Here are some more numbers to try:
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