A:
Positive:
1 x 33072222123 x 1437922747 x 7036643197 x 16787931081 x 3059411553 x 2129574531 x 729919259 x 35719
Negative:
-1 x -330722221-23 x -14379227-47 x -7036643-197 x -1678793-1081 x -305941-1553 x -212957-4531 x -72991-9259 x -35719
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 330,722,221, 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 | 330,722,221 | |
| -1 | -330,722,221 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 330,722,221.
Example:
1 x 330,722,221 = 330,722,221
and
-1 x -330,722,221 = 330,722,221
Notice both answers equal 330,722,221
With that explanation out of the way, let's continue. Next, we take the number 330,722,221 and divide it by 2:
330,722,221 ÷ 2 = 165,361,110.5
If the quotient is a whole number, then 2 and 165,361,110.5 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 | 330,722,221 | |
| -1 | -330,722,221 |
Now, we try dividing 330,722,221 by 3:
330,722,221 ÷ 3 = 110,240,740.3333
If the quotient is a whole number, then 3 and 110,240,740.3333 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 | 330,722,221 | |
| -1 | -330,722,221 |
Let's try dividing by 4:
330,722,221 ÷ 4 = 82,680,555.25
If the quotient is a whole number, then 4 and 82,680,555.25 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 | 330,722,221 | |
| -1 | 330,722,221 |
If you did it right, you will end up with this table:
| 1 | 23 | 47 | 197 | 1,081 | 1,553 | 4,531 | 9,259 | 35,719 | 72,991 | 212,957 | 305,941 | 1,678,793 | 7,036,643 | 14,379,227 | 330,722,221 |
| -1 | -23 | -47 | -197 | -1,081 | -1,553 | -4,531 | -9,259 | -35,719 | -72,991 | -212,957 | -305,941 | -1,678,793 | -7,036,643 | -14,379,227 | -330,722,221 |
Here are some more numbers to try:
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