A:
Positive:
1 x 32123155 x 64246343 x 7470567 x 47945215 x 14941223 x 14405335 x 95891115 x 2881
Negative:
-1 x -3212315-5 x -642463-43 x -74705-67 x -47945-215 x -14941-223 x -14405-335 x -9589-1115 x -2881
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 3,212,315, 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 | 3,212,315 | |
| -1 | -3,212,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,212,315.
Example:
1 x 3,212,315 = 3,212,315
and
-1 x -3,212,315 = 3,212,315
Notice both answers equal 3,212,315
With that explanation out of the way, let's continue. Next, we take the number 3,212,315 and divide it by 2:
3,212,315 ÷ 2 = 1,606,157.5
If the quotient is a whole number, then 2 and 1,606,157.5 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 | 3,212,315 | |
| -1 | -3,212,315 |
Now, we try dividing 3,212,315 by 3:
3,212,315 ÷ 3 = 1,070,771.6667
If the quotient is a whole number, then 3 and 1,070,771.6667 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 | 3,212,315 | |
| -1 | -3,212,315 |
Let's try dividing by 4:
3,212,315 ÷ 4 = 803,078.75
If the quotient is a whole number, then 4 and 803,078.75 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 | 3,212,315 | |
| -1 | 3,212,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 67 | 215 | 223 | 335 | 1,115 | 2,881 | 9,589 | 14,405 | 14,941 | 47,945 | 74,705 | 642,463 | 3,212,315 |
| -1 | -5 | -43 | -67 | -215 | -223 | -335 | -1,115 | -2,881 | -9,589 | -14,405 | -14,941 | -47,945 | -74,705 | -642,463 | -3,212,315 |
Here are some more numbers to try:
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