A:
Positive:
1 x 3312167117 x 4731667337 x 895180367 x 4943533259 x 1278829469 x 7062192479 x 13360917353 x 19087
Negative:
-1 x -331216711-7 x -47316673-37 x -8951803-67 x -4943533-259 x -1278829-469 x -706219-2479 x -133609-17353 x -19087
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 331,216,711, 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 | 331,216,711 | |
| -1 | -331,216,711 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 331,216,711.
Example:
1 x 331,216,711 = 331,216,711
and
-1 x -331,216,711 = 331,216,711
Notice both answers equal 331,216,711
With that explanation out of the way, let's continue. Next, we take the number 331,216,711 and divide it by 2:
331,216,711 ÷ 2 = 165,608,355.5
If the quotient is a whole number, then 2 and 165,608,355.5 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 | 331,216,711 | |
| -1 | -331,216,711 |
Now, we try dividing 331,216,711 by 3:
331,216,711 ÷ 3 = 110,405,570.3333
If the quotient is a whole number, then 3 and 110,405,570.3333 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 | 331,216,711 | |
| -1 | -331,216,711 |
Let's try dividing by 4:
331,216,711 ÷ 4 = 82,804,177.75
If the quotient is a whole number, then 4 and 82,804,177.75 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 | 331,216,711 | |
| -1 | 331,216,711 |
If you did it right, you will end up with this table:
| 1 | 7 | 37 | 67 | 259 | 469 | 2,479 | 17,353 | 19,087 | 133,609 | 706,219 | 1,278,829 | 4,943,533 | 8,951,803 | 47,316,673 | 331,216,711 |
| -1 | -7 | -37 | -67 | -259 | -469 | -2,479 | -17,353 | -19,087 | -133,609 | -706,219 | -1,278,829 | -4,943,533 | -8,951,803 | -47,316,673 | -331,216,711 |
Here are some more numbers to try:
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