A:
Positive:
1 x 33042021111 x 3003820117 x 19436483187 x 1766953991 x 3334211783 x 18531710901 x 3031116847 x 19613
Negative:
-1 x -330420211-11 x -30038201-17 x -19436483-187 x -1766953-991 x -333421-1783 x -185317-10901 x -30311-16847 x -19613
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 330,420,211, 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 | 330,420,211 | |
| -1 | -330,420,211 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 330,420,211.
Example:
1 x 330,420,211 = 330,420,211
and
-1 x -330,420,211 = 330,420,211
Notice both answers equal 330,420,211
With that explanation out of the way, let's continue. Next, we take the number 330,420,211 and divide it by 2:
330,420,211 ÷ 2 = 165,210,105.5
If the quotient is a whole number, then 2 and 165,210,105.5 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 | 330,420,211 | |
| -1 | -330,420,211 |
Now, we try dividing 330,420,211 by 3:
330,420,211 ÷ 3 = 110,140,070.3333
If the quotient is a whole number, then 3 and 110,140,070.3333 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 | 330,420,211 | |
| -1 | -330,420,211 |
Let's try dividing by 4:
330,420,211 ÷ 4 = 82,605,052.75
If the quotient is a whole number, then 4 and 82,605,052.75 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 | 330,420,211 | |
| -1 | 330,420,211 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 187 | 991 | 1,783 | 10,901 | 16,847 | 19,613 | 30,311 | 185,317 | 333,421 | 1,766,953 | 19,436,483 | 30,038,201 | 330,420,211 |
| -1 | -11 | -17 | -187 | -991 | -1,783 | -10,901 | -16,847 | -19,613 | -30,311 | -185,317 | -333,421 | -1,766,953 | -19,436,483 | -30,038,201 | -330,420,211 |
Here are some more numbers to try:
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