A:
Positive:
1 x 302422155 x 604844329 x 104283541 x 737615145 x 208567205 x 1475231189 x 254355087 x 5945
Negative:
-1 x -30242215-5 x -6048443-29 x -1042835-41 x -737615-145 x -208567-205 x -147523-1189 x -25435-5087 x -5945
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 30,242,215, 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 | 30,242,215 | |
| -1 | -30,242,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,242,215.
Example:
1 x 30,242,215 = 30,242,215
and
-1 x -30,242,215 = 30,242,215
Notice both answers equal 30,242,215
With that explanation out of the way, let's continue. Next, we take the number 30,242,215 and divide it by 2:
30,242,215 ÷ 2 = 15,121,107.5
If the quotient is a whole number, then 2 and 15,121,107.5 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 | 30,242,215 | |
| -1 | -30,242,215 |
Now, we try dividing 30,242,215 by 3:
30,242,215 ÷ 3 = 10,080,738.3333
If the quotient is a whole number, then 3 and 10,080,738.3333 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 | 30,242,215 | |
| -1 | -30,242,215 |
Let's try dividing by 4:
30,242,215 ÷ 4 = 7,560,553.75
If the quotient is a whole number, then 4 and 7,560,553.75 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 | 30,242,215 | |
| -1 | 30,242,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 41 | 145 | 205 | 1,189 | 5,087 | 5,945 | 25,435 | 147,523 | 208,567 | 737,615 | 1,042,835 | 6,048,443 | 30,242,215 |
| -1 | -5 | -29 | -41 | -145 | -205 | -1,189 | -5,087 | -5,945 | -25,435 | -147,523 | -208,567 | -737,615 | -1,042,835 | -6,048,443 | -30,242,215 |
Here are some more numbers to try:
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