A:
Positive:
1 x 31232397 x 44617719 x 16438123 x 135793133 x 23483161 x 19399437 x 71471021 x 3059
Negative:
-1 x -3123239-7 x -446177-19 x -164381-23 x -135793-133 x -23483-161 x -19399-437 x -7147-1021 x -3059
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 3,123,239, 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 | 3,123,239 | |
| -1 | -3,123,239 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,123,239.
Example:
1 x 3,123,239 = 3,123,239
and
-1 x -3,123,239 = 3,123,239
Notice both answers equal 3,123,239
With that explanation out of the way, let's continue. Next, we take the number 3,123,239 and divide it by 2:
3,123,239 ÷ 2 = 1,561,619.5
If the quotient is a whole number, then 2 and 1,561,619.5 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 | 3,123,239 | |
| -1 | -3,123,239 |
Now, we try dividing 3,123,239 by 3:
3,123,239 ÷ 3 = 1,041,079.6667
If the quotient is a whole number, then 3 and 1,041,079.6667 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 | 3,123,239 | |
| -1 | -3,123,239 |
Let's try dividing by 4:
3,123,239 ÷ 4 = 780,809.75
If the quotient is a whole number, then 4 and 780,809.75 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 | 3,123,239 | |
| -1 | 3,123,239 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 23 | 133 | 161 | 437 | 1,021 | 3,059 | 7,147 | 19,399 | 23,483 | 135,793 | 164,381 | 446,177 | 3,123,239 |
| -1 | -7 | -19 | -23 | -133 | -161 | -437 | -1,021 | -3,059 | -7,147 | -19,399 | -23,483 | -135,793 | -164,381 | -446,177 | -3,123,239 |
Here are some more numbers to try:
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