A:
Positive:
1 x 123611055 x 247222129 x 426245145 x 85249163 x 75835523 x 23635815 x 151672615 x 4727
Negative:
-1 x -12361105-5 x -2472221-29 x -426245-145 x -85249-163 x -75835-523 x -23635-815 x -15167-2615 x -4727
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 12,361,105, 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 | 12,361,105 | |
| -1 | -12,361,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,361,105.
Example:
1 x 12,361,105 = 12,361,105
and
-1 x -12,361,105 = 12,361,105
Notice both answers equal 12,361,105
With that explanation out of the way, let's continue. Next, we take the number 12,361,105 and divide it by 2:
12,361,105 ÷ 2 = 6,180,552.5
If the quotient is a whole number, then 2 and 6,180,552.5 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 | 12,361,105 | |
| -1 | -12,361,105 |
Now, we try dividing 12,361,105 by 3:
12,361,105 ÷ 3 = 4,120,368.3333
If the quotient is a whole number, then 3 and 4,120,368.3333 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 | 12,361,105 | |
| -1 | -12,361,105 |
Let's try dividing by 4:
12,361,105 ÷ 4 = 3,090,276.25
If the quotient is a whole number, then 4 and 3,090,276.25 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 | 12,361,105 | |
| -1 | 12,361,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 163 | 523 | 815 | 2,615 | 4,727 | 15,167 | 23,635 | 75,835 | 85,249 | 426,245 | 2,472,221 | 12,361,105 |
| -1 | -5 | -29 | -145 | -163 | -523 | -815 | -2,615 | -4,727 | -15,167 | -23,635 | -75,835 | -85,249 | -426,245 | -2,472,221 | -12,361,105 |
Here are some more numbers to try:
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