A:
Positive:
1 x 3057307555 x 6114615111 x 2779370555 x 55587411871 x 1634052971 x 1029059355 x 3268114855 x 20581
Negative:
-1 x -305730755-5 x -61146151-11 x -27793705-55 x -5558741-1871 x -163405-2971 x -102905-9355 x -32681-14855 x -20581
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 305,730,755, 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 | 305,730,755 | |
| -1 | -305,730,755 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 305,730,755.
Example:
1 x 305,730,755 = 305,730,755
and
-1 x -305,730,755 = 305,730,755
Notice both answers equal 305,730,755
With that explanation out of the way, let's continue. Next, we take the number 305,730,755 and divide it by 2:
305,730,755 ÷ 2 = 152,865,377.5
If the quotient is a whole number, then 2 and 152,865,377.5 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 | 305,730,755 | |
| -1 | -305,730,755 |
Now, we try dividing 305,730,755 by 3:
305,730,755 ÷ 3 = 101,910,251.6667
If the quotient is a whole number, then 3 and 101,910,251.6667 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 | 305,730,755 | |
| -1 | -305,730,755 |
Let's try dividing by 4:
305,730,755 ÷ 4 = 76,432,688.75
If the quotient is a whole number, then 4 and 76,432,688.75 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 | 305,730,755 | |
| -1 | 305,730,755 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 1,871 | 2,971 | 9,355 | 14,855 | 20,581 | 32,681 | 102,905 | 163,405 | 5,558,741 | 27,793,705 | 61,146,151 | 305,730,755 |
| -1 | -5 | -11 | -55 | -1,871 | -2,971 | -9,355 | -14,855 | -20,581 | -32,681 | -102,905 | -163,405 | -5,558,741 | -27,793,705 | -61,146,151 | -305,730,755 |
Here are some more numbers to try:
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