A:
Positive:
1 x 12441212311 x 1131019361 x 203954379 x 1574837671 x 185413869 x 1431672347 x 530094819 x 25817
Negative:
-1 x -124412123-11 x -11310193-61 x -2039543-79 x -1574837-671 x -185413-869 x -143167-2347 x -53009-4819 x -25817
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 124,412,123, 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 | 124,412,123 | |
| -1 | -124,412,123 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 124,412,123.
Example:
1 x 124,412,123 = 124,412,123
and
-1 x -124,412,123 = 124,412,123
Notice both answers equal 124,412,123
With that explanation out of the way, let's continue. Next, we take the number 124,412,123 and divide it by 2:
124,412,123 ÷ 2 = 62,206,061.5
If the quotient is a whole number, then 2 and 62,206,061.5 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 | 124,412,123 | |
| -1 | -124,412,123 |
Now, we try dividing 124,412,123 by 3:
124,412,123 ÷ 3 = 41,470,707.6667
If the quotient is a whole number, then 3 and 41,470,707.6667 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 | 124,412,123 | |
| -1 | -124,412,123 |
Let's try dividing by 4:
124,412,123 ÷ 4 = 31,103,030.75
If the quotient is a whole number, then 4 and 31,103,030.75 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 | 124,412,123 | |
| -1 | 124,412,123 |
If you did it right, you will end up with this table:
| 1 | 11 | 61 | 79 | 671 | 869 | 2,347 | 4,819 | 25,817 | 53,009 | 143,167 | 185,413 | 1,574,837 | 2,039,543 | 11,310,193 | 124,412,123 |
| -1 | -11 | -61 | -79 | -671 | -869 | -2,347 | -4,819 | -25,817 | -53,009 | -143,167 | -185,413 | -1,574,837 | -2,039,543 | -11,310,193 | -124,412,123 |
Here are some more numbers to try:
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