A:
Positive:
1 x 125268717 x 178955319 x 65930997 x 129143133 x 94187679 x 18449971 x 129011843 x 6797
Negative:
-1 x -12526871-7 x -1789553-19 x -659309-97 x -129143-133 x -94187-679 x -18449-971 x -12901-1843 x -6797
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 12,526,871, 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 | 12,526,871 | |
| -1 | -12,526,871 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,526,871.
Example:
1 x 12,526,871 = 12,526,871
and
-1 x -12,526,871 = 12,526,871
Notice both answers equal 12,526,871
With that explanation out of the way, let's continue. Next, we take the number 12,526,871 and divide it by 2:
12,526,871 ÷ 2 = 6,263,435.5
If the quotient is a whole number, then 2 and 6,263,435.5 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 | 12,526,871 | |
| -1 | -12,526,871 |
Now, we try dividing 12,526,871 by 3:
12,526,871 ÷ 3 = 4,175,623.6667
If the quotient is a whole number, then 3 and 4,175,623.6667 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 | 12,526,871 | |
| -1 | -12,526,871 |
Let's try dividing by 4:
12,526,871 ÷ 4 = 3,131,717.75
If the quotient is a whole number, then 4 and 3,131,717.75 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 | 12,526,871 | |
| -1 | 12,526,871 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 97 | 133 | 679 | 971 | 1,843 | 6,797 | 12,901 | 18,449 | 94,187 | 129,143 | 659,309 | 1,789,553 | 12,526,871 |
| -1 | -7 | -19 | -97 | -133 | -679 | -971 | -1,843 | -6,797 | -12,901 | -18,449 | -94,187 | -129,143 | -659,309 | -1,789,553 | -12,526,871 |
Here are some more numbers to try:
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