A:
Positive:
1 x 302111355 x 604222797 x 311455167 x 180905373 x 80995485 x 62291835 x 361811865 x 16199
Negative:
-1 x -30211135-5 x -6042227-97 x -311455-167 x -180905-373 x -80995-485 x -62291-835 x -36181-1865 x -16199
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 30,211,135, 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 | 30,211,135 | |
| -1 | -30,211,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,211,135.
Example:
1 x 30,211,135 = 30,211,135
and
-1 x -30,211,135 = 30,211,135
Notice both answers equal 30,211,135
With that explanation out of the way, let's continue. Next, we take the number 30,211,135 and divide it by 2:
30,211,135 ÷ 2 = 15,105,567.5
If the quotient is a whole number, then 2 and 15,105,567.5 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 | 30,211,135 | |
| -1 | -30,211,135 |
Now, we try dividing 30,211,135 by 3:
30,211,135 ÷ 3 = 10,070,378.3333
If the quotient is a whole number, then 3 and 10,070,378.3333 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 | 30,211,135 | |
| -1 | -30,211,135 |
Let's try dividing by 4:
30,211,135 ÷ 4 = 7,552,783.75
If the quotient is a whole number, then 4 and 7,552,783.75 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 | 30,211,135 | |
| -1 | 30,211,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 97 | 167 | 373 | 485 | 835 | 1,865 | 16,199 | 36,181 | 62,291 | 80,995 | 180,905 | 311,455 | 6,042,227 | 30,211,135 |
| -1 | -5 | -97 | -167 | -373 | -485 | -835 | -1,865 | -16,199 | -36,181 | -62,291 | -80,995 | -180,905 | -311,455 | -6,042,227 | -30,211,135 |
Here are some more numbers to try:
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