A:
Positive:
1 x 3313123255 x 6626246525 x 1325249373 x 4538525365 x 907705379 x 874175479 x 6916751825 x 1815411895 x 1748352395 x 1383359475 x 3496711975 x 27667
Negative:
-1 x -331312325-5 x -66262465-25 x -13252493-73 x -4538525-365 x -907705-379 x -874175-479 x -691675-1825 x -181541-1895 x -174835-2395 x -138335-9475 x -34967-11975 x -27667
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 331,312,325, 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 | 331,312,325 | |
| -1 | -331,312,325 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 331,312,325.
Example:
1 x 331,312,325 = 331,312,325
and
-1 x -331,312,325 = 331,312,325
Notice both answers equal 331,312,325
With that explanation out of the way, let's continue. Next, we take the number 331,312,325 and divide it by 2:
331,312,325 ÷ 2 = 165,656,162.5
If the quotient is a whole number, then 2 and 165,656,162.5 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 | 331,312,325 | |
| -1 | -331,312,325 |
Now, we try dividing 331,312,325 by 3:
331,312,325 ÷ 3 = 110,437,441.6667
If the quotient is a whole number, then 3 and 110,437,441.6667 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 | 331,312,325 | |
| -1 | -331,312,325 |
Let's try dividing by 4:
331,312,325 ÷ 4 = 82,828,081.25
If the quotient is a whole number, then 4 and 82,828,081.25 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 | 331,312,325 | |
| -1 | 331,312,325 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 73 | 365 | 379 | 479 | 1,825 | 1,895 | 2,395 | 9,475 | 11,975 | 27,667 | 34,967 | 138,335 | 174,835 | 181,541 | 691,675 | 874,175 | 907,705 | 4,538,525 | 13,252,493 | 66,262,465 | 331,312,325 |
| -1 | -5 | -25 | -73 | -365 | -379 | -479 | -1,825 | -1,895 | -2,395 | -9,475 | -11,975 | -27,667 | -34,967 | -138,335 | -174,835 | -181,541 | -691,675 | -874,175 | -907,705 | -4,538,525 | -13,252,493 | -66,262,465 | -331,312,325 |
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