A:
Positive:
1 x 129484855 x 258969711 x 117713555 x 235427311 x 41635757 x 171051555 x 83273421 x 3785
Negative:
-1 x -12948485-5 x -2589697-11 x -1177135-55 x -235427-311 x -41635-757 x -17105-1555 x -8327-3421 x -3785
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 12,948,485, 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 | 12,948,485 | |
| -1 | -12,948,485 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,948,485.
Example:
1 x 12,948,485 = 12,948,485
and
-1 x -12,948,485 = 12,948,485
Notice both answers equal 12,948,485
With that explanation out of the way, let's continue. Next, we take the number 12,948,485 and divide it by 2:
12,948,485 ÷ 2 = 6,474,242.5
If the quotient is a whole number, then 2 and 6,474,242.5 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 | 12,948,485 | |
| -1 | -12,948,485 |
Now, we try dividing 12,948,485 by 3:
12,948,485 ÷ 3 = 4,316,161.6667
If the quotient is a whole number, then 3 and 4,316,161.6667 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 | 12,948,485 | |
| -1 | -12,948,485 |
Let's try dividing by 4:
12,948,485 ÷ 4 = 3,237,121.25
If the quotient is a whole number, then 4 and 3,237,121.25 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 | 12,948,485 | |
| -1 | 12,948,485 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 311 | 757 | 1,555 | 3,421 | 3,785 | 8,327 | 17,105 | 41,635 | 235,427 | 1,177,135 | 2,589,697 | 12,948,485 |
| -1 | -5 | -11 | -55 | -311 | -757 | -1,555 | -3,421 | -3,785 | -8,327 | -17,105 | -41,635 | -235,427 | -1,177,135 | -2,589,697 | -12,948,485 |
Here are some more numbers to try:
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