A:
Positive:
1 x 33147070917 x 1949827783 x 3993623347 x 955247677 x 4896171411 x 2349195899 x 5619111509 x 28801
Negative:
-1 x -331470709-17 x -19498277-83 x -3993623-347 x -955247-677 x -489617-1411 x -234919-5899 x -56191-11509 x -28801
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 331,470,709, 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 | 331,470,709 | |
| -1 | -331,470,709 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 331,470,709.
Example:
1 x 331,470,709 = 331,470,709
and
-1 x -331,470,709 = 331,470,709
Notice both answers equal 331,470,709
With that explanation out of the way, let's continue. Next, we take the number 331,470,709 and divide it by 2:
331,470,709 ÷ 2 = 165,735,354.5
If the quotient is a whole number, then 2 and 165,735,354.5 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 | 331,470,709 | |
| -1 | -331,470,709 |
Now, we try dividing 331,470,709 by 3:
331,470,709 ÷ 3 = 110,490,236.3333
If the quotient is a whole number, then 3 and 110,490,236.3333 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 | 331,470,709 | |
| -1 | -331,470,709 |
Let's try dividing by 4:
331,470,709 ÷ 4 = 82,867,677.25
If the quotient is a whole number, then 4 and 82,867,677.25 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 | 331,470,709 | |
| -1 | 331,470,709 |
If you did it right, you will end up with this table:
| 1 | 17 | 83 | 347 | 677 | 1,411 | 5,899 | 11,509 | 28,801 | 56,191 | 234,919 | 489,617 | 955,247 | 3,993,623 | 19,498,277 | 331,470,709 |
| -1 | -17 | -83 | -347 | -677 | -1,411 | -5,899 | -11,509 | -28,801 | -56,191 | -234,919 | -489,617 | -955,247 | -3,993,623 | -19,498,277 | -331,470,709 |
Here are some more numbers to try:
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