A:
Positive:
1 x 245401255 x 490802525 x 981605125 x 196321137 x 179125685 x 358251433 x 171253425 x 7165
Negative:
-1 x -24540125-5 x -4908025-25 x -981605-125 x -196321-137 x -179125-685 x -35825-1433 x -17125-3425 x -7165
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 24,540,125, 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 | 24,540,125 | |
| -1 | -24,540,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 24,540,125.
Example:
1 x 24,540,125 = 24,540,125
and
-1 x -24,540,125 = 24,540,125
Notice both answers equal 24,540,125
With that explanation out of the way, let's continue. Next, we take the number 24,540,125 and divide it by 2:
24,540,125 ÷ 2 = 12,270,062.5
If the quotient is a whole number, then 2 and 12,270,062.5 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 | 24,540,125 | |
| -1 | -24,540,125 |
Now, we try dividing 24,540,125 by 3:
24,540,125 ÷ 3 = 8,180,041.6667
If the quotient is a whole number, then 3 and 8,180,041.6667 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 | 24,540,125 | |
| -1 | -24,540,125 |
Let's try dividing by 4:
24,540,125 ÷ 4 = 6,135,031.25
If the quotient is a whole number, then 4 and 6,135,031.25 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 | 24,540,125 | |
| -1 | 24,540,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 137 | 685 | 1,433 | 3,425 | 7,165 | 17,125 | 35,825 | 179,125 | 196,321 | 981,605 | 4,908,025 | 24,540,125 |
| -1 | -5 | -25 | -125 | -137 | -685 | -1,433 | -3,425 | -7,165 | -17,125 | -35,825 | -179,125 | -196,321 | -981,605 | -4,908,025 | -24,540,125 |
Here are some more numbers to try:
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