A:
Positive:
1 x 1269963055 x 2539926131 x 4096655155 x 819331431 x 2946551901 x 668052155 x 589319505 x 13361
Negative:
-1 x -126996305-5 x -25399261-31 x -4096655-155 x -819331-431 x -294655-1901 x -66805-2155 x -58931-9505 x -13361
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 126,996,305, 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 | 126,996,305 | |
| -1 | -126,996,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 126,996,305.
Example:
1 x 126,996,305 = 126,996,305
and
-1 x -126,996,305 = 126,996,305
Notice both answers equal 126,996,305
With that explanation out of the way, let's continue. Next, we take the number 126,996,305 and divide it by 2:
126,996,305 ÷ 2 = 63,498,152.5
If the quotient is a whole number, then 2 and 63,498,152.5 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 | 126,996,305 | |
| -1 | -126,996,305 |
Now, we try dividing 126,996,305 by 3:
126,996,305 ÷ 3 = 42,332,101.6667
If the quotient is a whole number, then 3 and 42,332,101.6667 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 | 126,996,305 | |
| -1 | -126,996,305 |
Let's try dividing by 4:
126,996,305 ÷ 4 = 31,749,076.25
If the quotient is a whole number, then 4 and 31,749,076.25 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 | 126,996,305 | |
| -1 | 126,996,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 155 | 431 | 1,901 | 2,155 | 9,505 | 13,361 | 58,931 | 66,805 | 294,655 | 819,331 | 4,096,655 | 25,399,261 | 126,996,305 |
| -1 | -5 | -31 | -155 | -431 | -1,901 | -2,155 | -9,505 | -13,361 | -58,931 | -66,805 | -294,655 | -819,331 | -4,096,655 | -25,399,261 | -126,996,305 |
Here are some more numbers to try:
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