A:
Positive:
1 x 3065111455 x 6130222937 x 8284085185 x 16568171031 x 2972951607 x 1907355155 x 594598035 x 38147
Negative:
-1 x -306511145-5 x -61302229-37 x -8284085-185 x -1656817-1031 x -297295-1607 x -190735-5155 x -59459-8035 x -38147
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 306,511,145, 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 | 306,511,145 | |
| -1 | -306,511,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 306,511,145.
Example:
1 x 306,511,145 = 306,511,145
and
-1 x -306,511,145 = 306,511,145
Notice both answers equal 306,511,145
With that explanation out of the way, let's continue. Next, we take the number 306,511,145 and divide it by 2:
306,511,145 ÷ 2 = 153,255,572.5
If the quotient is a whole number, then 2 and 153,255,572.5 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 | 306,511,145 | |
| -1 | -306,511,145 |
Now, we try dividing 306,511,145 by 3:
306,511,145 ÷ 3 = 102,170,381.6667
If the quotient is a whole number, then 3 and 102,170,381.6667 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 | 306,511,145 | |
| -1 | -306,511,145 |
Let's try dividing by 4:
306,511,145 ÷ 4 = 76,627,786.25
If the quotient is a whole number, then 4 and 76,627,786.25 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 | 306,511,145 | |
| -1 | 306,511,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 1,031 | 1,607 | 5,155 | 8,035 | 38,147 | 59,459 | 190,735 | 297,295 | 1,656,817 | 8,284,085 | 61,302,229 | 306,511,145 |
| -1 | -5 | -37 | -185 | -1,031 | -1,607 | -5,155 | -8,035 | -38,147 | -59,459 | -190,735 | -297,295 | -1,656,817 | -8,284,085 | -61,302,229 | -306,511,145 |
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