A:
Positive:
1 x 3311032137 x 4730045967 x 4941839469 x 705977673 x 4919811049 x 3156374711 x 702837343 x 45091
Negative:
-1 x -331103213-7 x -47300459-67 x -4941839-469 x -705977-673 x -491981-1049 x -315637-4711 x -70283-7343 x -45091
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 331,103,213, 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 | 331,103,213 | |
| -1 | -331,103,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 331,103,213.
Example:
1 x 331,103,213 = 331,103,213
and
-1 x -331,103,213 = 331,103,213
Notice both answers equal 331,103,213
With that explanation out of the way, let's continue. Next, we take the number 331,103,213 and divide it by 2:
331,103,213 ÷ 2 = 165,551,606.5
If the quotient is a whole number, then 2 and 165,551,606.5 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 | 331,103,213 | |
| -1 | -331,103,213 |
Now, we try dividing 331,103,213 by 3:
331,103,213 ÷ 3 = 110,367,737.6667
If the quotient is a whole number, then 3 and 110,367,737.6667 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 | 331,103,213 | |
| -1 | -331,103,213 |
Let's try dividing by 4:
331,103,213 ÷ 4 = 82,775,803.25
If the quotient is a whole number, then 4 and 82,775,803.25 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 | 331,103,213 | |
| -1 | 331,103,213 |
If you did it right, you will end up with this table:
| 1 | 7 | 67 | 469 | 673 | 1,049 | 4,711 | 7,343 | 45,091 | 70,283 | 315,637 | 491,981 | 705,977 | 4,941,839 | 47,300,459 | 331,103,213 |
| -1 | -7 | -67 | -469 | -673 | -1,049 | -4,711 | -7,343 | -45,091 | -70,283 | -315,637 | -491,981 | -705,977 | -4,941,839 | -47,300,459 | -331,103,213 |
Here are some more numbers to try:
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