A:
Positive:
1 x 1265411155 x 2530822317 x 744359585 x 1488719199 x 635885995 x 1271773383 x 374057481 x 16915
Negative:
-1 x -126541115-5 x -25308223-17 x -7443595-85 x -1488719-199 x -635885-995 x -127177-3383 x -37405-7481 x -16915
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 126,541,115, 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 | 126,541,115 | |
| -1 | -126,541,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 126,541,115.
Example:
1 x 126,541,115 = 126,541,115
and
-1 x -126,541,115 = 126,541,115
Notice both answers equal 126,541,115
With that explanation out of the way, let's continue. Next, we take the number 126,541,115 and divide it by 2:
126,541,115 ÷ 2 = 63,270,557.5
If the quotient is a whole number, then 2 and 63,270,557.5 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 | 126,541,115 | |
| -1 | -126,541,115 |
Now, we try dividing 126,541,115 by 3:
126,541,115 ÷ 3 = 42,180,371.6667
If the quotient is a whole number, then 3 and 42,180,371.6667 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 | 126,541,115 | |
| -1 | -126,541,115 |
Let's try dividing by 4:
126,541,115 ÷ 4 = 31,635,278.75
If the quotient is a whole number, then 4 and 31,635,278.75 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 | 126,541,115 | |
| -1 | 126,541,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 199 | 995 | 3,383 | 7,481 | 16,915 | 37,405 | 127,177 | 635,885 | 1,488,719 | 7,443,595 | 25,308,223 | 126,541,115 |
| -1 | -5 | -17 | -85 | -199 | -995 | -3,383 | -7,481 | -16,915 | -37,405 | -127,177 | -635,885 | -1,488,719 | -7,443,595 | -25,308,223 | -126,541,115 |
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