A:
Positive:
1 x 203041255 x 406082525 x 812165125 x 162433127 x 159875635 x 319751279 x 158753175 x 6395
Negative:
-1 x -20304125-5 x -4060825-25 x -812165-125 x -162433-127 x -159875-635 x -31975-1279 x -15875-3175 x -6395
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 20,304,125, 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 | 20,304,125 | |
| -1 | -20,304,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,304,125.
Example:
1 x 20,304,125 = 20,304,125
and
-1 x -20,304,125 = 20,304,125
Notice both answers equal 20,304,125
With that explanation out of the way, let's continue. Next, we take the number 20,304,125 and divide it by 2:
20,304,125 ÷ 2 = 10,152,062.5
If the quotient is a whole number, then 2 and 10,152,062.5 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 | 20,304,125 | |
| -1 | -20,304,125 |
Now, we try dividing 20,304,125 by 3:
20,304,125 ÷ 3 = 6,768,041.6667
If the quotient is a whole number, then 3 and 6,768,041.6667 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 | 20,304,125 | |
| -1 | -20,304,125 |
Let's try dividing by 4:
20,304,125 ÷ 4 = 5,076,031.25
If the quotient is a whole number, then 4 and 5,076,031.25 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 | 20,304,125 | |
| -1 | 20,304,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 127 | 635 | 1,279 | 3,175 | 6,395 | 15,875 | 31,975 | 159,875 | 162,433 | 812,165 | 4,060,825 | 20,304,125 |
| -1 | -5 | -25 | -125 | -127 | -635 | -1,279 | -3,175 | -6,395 | -15,875 | -31,975 | -159,875 | -162,433 | -812,165 | -4,060,825 | -20,304,125 |
Here are some more numbers to try:
Try the factor calculator