A:
Positive:
1 x 123206655 x 24641337 x 176009517 x 72474535 x 35201985 x 144949119 x 103535595 x 20707
Negative:
-1 x -12320665-5 x -2464133-7 x -1760095-17 x -724745-35 x -352019-85 x -144949-119 x -103535-595 x -20707
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 12,320,665, 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 | 12,320,665 | |
| -1 | -12,320,665 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,320,665.
Example:
1 x 12,320,665 = 12,320,665
and
-1 x -12,320,665 = 12,320,665
Notice both answers equal 12,320,665
With that explanation out of the way, let's continue. Next, we take the number 12,320,665 and divide it by 2:
12,320,665 ÷ 2 = 6,160,332.5
If the quotient is a whole number, then 2 and 6,160,332.5 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 | 12,320,665 | |
| -1 | -12,320,665 |
Now, we try dividing 12,320,665 by 3:
12,320,665 ÷ 3 = 4,106,888.3333
If the quotient is a whole number, then 3 and 4,106,888.3333 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 | 12,320,665 | |
| -1 | -12,320,665 |
Let's try dividing by 4:
12,320,665 ÷ 4 = 3,080,166.25
If the quotient is a whole number, then 4 and 3,080,166.25 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 | 12,320,665 | |
| -1 | 12,320,665 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 35 | 85 | 119 | 595 | 20,707 | 103,535 | 144,949 | 352,019 | 724,745 | 1,760,095 | 2,464,133 | 12,320,665 |
| -1 | -5 | -7 | -17 | -35 | -85 | -119 | -595 | -20,707 | -103,535 | -144,949 | -352,019 | -724,745 | -1,760,095 | -2,464,133 | -12,320,665 |
Here are some more numbers to try:
Try the factor calculator