A:
Positive:
1 x 3061718055 x 6123436141 x 7467605113 x 2709485205 x 1493521565 x 5418974633 x 6608513217 x 23165
Negative:
-1 x -306171805-5 x -61234361-41 x -7467605-113 x -2709485-205 x -1493521-565 x -541897-4633 x -66085-13217 x -23165
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 306,171,805, 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 | 306,171,805 | |
| -1 | -306,171,805 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 306,171,805.
Example:
1 x 306,171,805 = 306,171,805
and
-1 x -306,171,805 = 306,171,805
Notice both answers equal 306,171,805
With that explanation out of the way, let's continue. Next, we take the number 306,171,805 and divide it by 2:
306,171,805 ÷ 2 = 153,085,902.5
If the quotient is a whole number, then 2 and 153,085,902.5 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 | 306,171,805 | |
| -1 | -306,171,805 |
Now, we try dividing 306,171,805 by 3:
306,171,805 ÷ 3 = 102,057,268.3333
If the quotient is a whole number, then 3 and 102,057,268.3333 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 | 306,171,805 | |
| -1 | -306,171,805 |
Let's try dividing by 4:
306,171,805 ÷ 4 = 76,542,951.25
If the quotient is a whole number, then 4 and 76,542,951.25 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 | 306,171,805 | |
| -1 | 306,171,805 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 113 | 205 | 565 | 4,633 | 13,217 | 23,165 | 66,085 | 541,897 | 1,493,521 | 2,709,485 | 7,467,605 | 61,234,361 | 306,171,805 |
| -1 | -5 | -41 | -113 | -205 | -565 | -4,633 | -13,217 | -23,165 | -66,085 | -541,897 | -1,493,521 | -2,709,485 | -7,467,605 | -61,234,361 | -306,171,805 |
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