A:
Positive:
1 x 3023121055 x 6046242117 x 1778306585 x 3556613359 x 8420951795 x 1684196103 x 495359907 x 30515
Negative:
-1 x -302312105-5 x -60462421-17 x -17783065-85 x -3556613-359 x -842095-1795 x -168419-6103 x -49535-9907 x -30515
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 302,312,105, 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 | 302,312,105 | |
| -1 | -302,312,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 302,312,105.
Example:
1 x 302,312,105 = 302,312,105
and
-1 x -302,312,105 = 302,312,105
Notice both answers equal 302,312,105
With that explanation out of the way, let's continue. Next, we take the number 302,312,105 and divide it by 2:
302,312,105 ÷ 2 = 151,156,052.5
If the quotient is a whole number, then 2 and 151,156,052.5 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 | 302,312,105 | |
| -1 | -302,312,105 |
Now, we try dividing 302,312,105 by 3:
302,312,105 ÷ 3 = 100,770,701.6667
If the quotient is a whole number, then 3 and 100,770,701.6667 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 | 302,312,105 | |
| -1 | -302,312,105 |
Let's try dividing by 4:
302,312,105 ÷ 4 = 75,578,026.25
If the quotient is a whole number, then 4 and 75,578,026.25 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 | 302,312,105 | |
| -1 | 302,312,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 359 | 1,795 | 6,103 | 9,907 | 30,515 | 49,535 | 168,419 | 842,095 | 3,556,613 | 17,783,065 | 60,462,421 | 302,312,105 |
| -1 | -5 | -17 | -85 | -359 | -1,795 | -6,103 | -9,907 | -30,515 | -49,535 | -168,419 | -842,095 | -3,556,613 | -17,783,065 | -60,462,421 | -302,312,105 |
Here are some more numbers to try:
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