A:
Positive:
1 x 123232155 x 246464317 x 72489585 x 144979113 x 109055565 x 218111283 x 96051921 x 6415
Negative:
-1 x -12323215-5 x -2464643-17 x -724895-85 x -144979-113 x -109055-565 x -21811-1283 x -9605-1921 x -6415
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 12,323,215, 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 | 12,323,215 | |
| -1 | -12,323,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,323,215.
Example:
1 x 12,323,215 = 12,323,215
and
-1 x -12,323,215 = 12,323,215
Notice both answers equal 12,323,215
With that explanation out of the way, let's continue. Next, we take the number 12,323,215 and divide it by 2:
12,323,215 ÷ 2 = 6,161,607.5
If the quotient is a whole number, then 2 and 6,161,607.5 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 | 12,323,215 | |
| -1 | -12,323,215 |
Now, we try dividing 12,323,215 by 3:
12,323,215 ÷ 3 = 4,107,738.3333
If the quotient is a whole number, then 3 and 4,107,738.3333 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 | 12,323,215 | |
| -1 | -12,323,215 |
Let's try dividing by 4:
12,323,215 ÷ 4 = 3,080,803.75
If the quotient is a whole number, then 4 and 3,080,803.75 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 | 12,323,215 | |
| -1 | 12,323,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 113 | 565 | 1,283 | 1,921 | 6,415 | 9,605 | 21,811 | 109,055 | 144,979 | 724,895 | 2,464,643 | 12,323,215 |
| -1 | -5 | -17 | -85 | -113 | -565 | -1,283 | -1,921 | -6,415 | -9,605 | -21,811 | -109,055 | -144,979 | -724,895 | -2,464,643 | -12,323,215 |
Here are some more numbers to try:
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