A:
Positive:
1 x 1223620917 x 71977719 x 64401143 x 284563323 x 37883731 x 16739817 x 14977881 x 13889
Negative:
-1 x -12236209-17 x -719777-19 x -644011-43 x -284563-323 x -37883-731 x -16739-817 x -14977-881 x -13889
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 12,236,209, 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 | 12,236,209 | |
| -1 | -12,236,209 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,236,209.
Example:
1 x 12,236,209 = 12,236,209
and
-1 x -12,236,209 = 12,236,209
Notice both answers equal 12,236,209
With that explanation out of the way, let's continue. Next, we take the number 12,236,209 and divide it by 2:
12,236,209 ÷ 2 = 6,118,104.5
If the quotient is a whole number, then 2 and 6,118,104.5 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 | 12,236,209 | |
| -1 | -12,236,209 |
Now, we try dividing 12,236,209 by 3:
12,236,209 ÷ 3 = 4,078,736.3333
If the quotient is a whole number, then 3 and 4,078,736.3333 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 | 12,236,209 | |
| -1 | -12,236,209 |
Let's try dividing by 4:
12,236,209 ÷ 4 = 3,059,052.25
If the quotient is a whole number, then 4 and 3,059,052.25 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 | 12,236,209 | |
| -1 | 12,236,209 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 43 | 323 | 731 | 817 | 881 | 13,889 | 14,977 | 16,739 | 37,883 | 284,563 | 644,011 | 719,777 | 12,236,209 |
| -1 | -17 | -19 | -43 | -323 | -731 | -817 | -881 | -13,889 | -14,977 | -16,739 | -37,883 | -284,563 | -644,011 | -719,777 | -12,236,209 |
Here are some more numbers to try:
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