A:
Positive:
1 x 3313321277 x 4733316119 x 17438533133 x 2491219409 x 8101032863 x 1157296091 x 543977771 x 42637
Negative:
-1 x -331332127-7 x -47333161-19 x -17438533-133 x -2491219-409 x -810103-2863 x -115729-6091 x -54397-7771 x -42637
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 331,332,127, 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 | 331,332,127 | |
| -1 | -331,332,127 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 331,332,127.
Example:
1 x 331,332,127 = 331,332,127
and
-1 x -331,332,127 = 331,332,127
Notice both answers equal 331,332,127
With that explanation out of the way, let's continue. Next, we take the number 331,332,127 and divide it by 2:
331,332,127 ÷ 2 = 165,666,063.5
If the quotient is a whole number, then 2 and 165,666,063.5 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 | 331,332,127 | |
| -1 | -331,332,127 |
Now, we try dividing 331,332,127 by 3:
331,332,127 ÷ 3 = 110,444,042.3333
If the quotient is a whole number, then 3 and 110,444,042.3333 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 | 331,332,127 | |
| -1 | -331,332,127 |
Let's try dividing by 4:
331,332,127 ÷ 4 = 82,833,031.75
If the quotient is a whole number, then 4 and 82,833,031.75 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 | 331,332,127 | |
| -1 | 331,332,127 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 409 | 2,863 | 6,091 | 7,771 | 42,637 | 54,397 | 115,729 | 810,103 | 2,491,219 | 17,438,533 | 47,333,161 | 331,332,127 |
| -1 | -7 | -19 | -133 | -409 | -2,863 | -6,091 | -7,771 | -42,637 | -54,397 | -115,729 | -810,103 | -2,491,219 | -17,438,533 | -47,333,161 | -331,332,127 |
Here are some more numbers to try:
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