A:
Positive:
1 x 3304202155 x 6608404367 x 4931645223 x 1481705335 x 9863291115 x 2963414423 x 7470514941 x 22115
Negative:
-1 x -330420215-5 x -66084043-67 x -4931645-223 x -1481705-335 x -986329-1115 x -296341-4423 x -74705-14941 x -22115
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 330,420,215, 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 | 330,420,215 | |
| -1 | -330,420,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 330,420,215.
Example:
1 x 330,420,215 = 330,420,215
and
-1 x -330,420,215 = 330,420,215
Notice both answers equal 330,420,215
With that explanation out of the way, let's continue. Next, we take the number 330,420,215 and divide it by 2:
330,420,215 ÷ 2 = 165,210,107.5
If the quotient is a whole number, then 2 and 165,210,107.5 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 | 330,420,215 | |
| -1 | -330,420,215 |
Now, we try dividing 330,420,215 by 3:
330,420,215 ÷ 3 = 110,140,071.6667
If the quotient is a whole number, then 3 and 110,140,071.6667 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 | 330,420,215 | |
| -1 | -330,420,215 |
Let's try dividing by 4:
330,420,215 ÷ 4 = 82,605,053.75
If the quotient is a whole number, then 4 and 82,605,053.75 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 | 330,420,215 | |
| -1 | 330,420,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 223 | 335 | 1,115 | 4,423 | 14,941 | 22,115 | 74,705 | 296,341 | 986,329 | 1,481,705 | 4,931,645 | 66,084,043 | 330,420,215 |
| -1 | -5 | -67 | -223 | -335 | -1,115 | -4,423 | -14,941 | -22,115 | -74,705 | -296,341 | -986,329 | -1,481,705 | -4,931,645 | -66,084,043 | -330,420,215 |
Here are some more numbers to try:
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