A:
Positive:
1 x 1249618711 x 113601729 x 43090343 x 290609319 x 39173473 x 26419911 x 137171247 x 10021
Negative:
-1 x -12496187-11 x -1136017-29 x -430903-43 x -290609-319 x -39173-473 x -26419-911 x -13717-1247 x -10021
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 12,496,187, 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 | 12,496,187 | |
| -1 | -12,496,187 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,496,187.
Example:
1 x 12,496,187 = 12,496,187
and
-1 x -12,496,187 = 12,496,187
Notice both answers equal 12,496,187
With that explanation out of the way, let's continue. Next, we take the number 12,496,187 and divide it by 2:
12,496,187 ÷ 2 = 6,248,093.5
If the quotient is a whole number, then 2 and 6,248,093.5 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 | 12,496,187 | |
| -1 | -12,496,187 |
Now, we try dividing 12,496,187 by 3:
12,496,187 ÷ 3 = 4,165,395.6667
If the quotient is a whole number, then 3 and 4,165,395.6667 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 | 12,496,187 | |
| -1 | -12,496,187 |
Let's try dividing by 4:
12,496,187 ÷ 4 = 3,124,046.75
If the quotient is a whole number, then 4 and 3,124,046.75 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 | 12,496,187 | |
| -1 | 12,496,187 |
If you did it right, you will end up with this table:
| 1 | 11 | 29 | 43 | 319 | 473 | 911 | 1,247 | 10,021 | 13,717 | 26,419 | 39,173 | 290,609 | 430,903 | 1,136,017 | 12,496,187 |
| -1 | -11 | -29 | -43 | -319 | -473 | -911 | -1,247 | -10,021 | -13,717 | -26,419 | -39,173 | -290,609 | -430,903 | -1,136,017 | -12,496,187 |
Here are some more numbers to try:
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