A:
Positive:
1 x 12420013111 x 1129092119 x 6536849209 x 594259673 x 184547883 x 1406577403 x 167779713 x 12787
Negative:
-1 x -124200131-11 x -11290921-19 x -6536849-209 x -594259-673 x -184547-883 x -140657-7403 x -16777-9713 x -12787
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 124,200,131, 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 | 124,200,131 | |
| -1 | -124,200,131 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 124,200,131.
Example:
1 x 124,200,131 = 124,200,131
and
-1 x -124,200,131 = 124,200,131
Notice both answers equal 124,200,131
With that explanation out of the way, let's continue. Next, we take the number 124,200,131 and divide it by 2:
124,200,131 ÷ 2 = 62,100,065.5
If the quotient is a whole number, then 2 and 62,100,065.5 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 | 124,200,131 | |
| -1 | -124,200,131 |
Now, we try dividing 124,200,131 by 3:
124,200,131 ÷ 3 = 41,400,043.6667
If the quotient is a whole number, then 3 and 41,400,043.6667 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 | 124,200,131 | |
| -1 | -124,200,131 |
Let's try dividing by 4:
124,200,131 ÷ 4 = 31,050,032.75
If the quotient is a whole number, then 4 and 31,050,032.75 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 | 124,200,131 | |
| -1 | 124,200,131 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 209 | 673 | 883 | 7,403 | 9,713 | 12,787 | 16,777 | 140,657 | 184,547 | 594,259 | 6,536,849 | 11,290,921 | 124,200,131 |
| -1 | -11 | -19 | -209 | -673 | -883 | -7,403 | -9,713 | -12,787 | -16,777 | -140,657 | -184,547 | -594,259 | -6,536,849 | -11,290,921 | -124,200,131 |
Here are some more numbers to try:
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