A:
Positive:
1 x 3311330155 x 6622660341 x 8076415199 x 1663985205 x 1615283995 x 3327978117 x 407958159 x 40585
Negative:
-1 x -331133015-5 x -66226603-41 x -8076415-199 x -1663985-205 x -1615283-995 x -332797-8117 x -40795-8159 x -40585
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 331,133,015, 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 | 331,133,015 | |
| -1 | -331,133,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 331,133,015.
Example:
1 x 331,133,015 = 331,133,015
and
-1 x -331,133,015 = 331,133,015
Notice both answers equal 331,133,015
With that explanation out of the way, let's continue. Next, we take the number 331,133,015 and divide it by 2:
331,133,015 ÷ 2 = 165,566,507.5
If the quotient is a whole number, then 2 and 165,566,507.5 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 | 331,133,015 | |
| -1 | -331,133,015 |
Now, we try dividing 331,133,015 by 3:
331,133,015 ÷ 3 = 110,377,671.6667
If the quotient is a whole number, then 3 and 110,377,671.6667 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 | 331,133,015 | |
| -1 | -331,133,015 |
Let's try dividing by 4:
331,133,015 ÷ 4 = 82,783,253.75
If the quotient is a whole number, then 4 and 82,783,253.75 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 | 331,133,015 | |
| -1 | 331,133,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 199 | 205 | 995 | 8,117 | 8,159 | 40,585 | 40,795 | 332,797 | 1,615,283 | 1,663,985 | 8,076,415 | 66,226,603 | 331,133,015 |
| -1 | -5 | -41 | -199 | -205 | -995 | -8,117 | -8,159 | -40,585 | -40,795 | -332,797 | -1,615,283 | -1,663,985 | -8,076,415 | -66,226,603 | -331,133,015 |
Here are some more numbers to try:
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