A:
Positive:
1 x 255421255 x 51084257 x 364887525 x 102168535 x 729775125 x 204337175 x 145955875 x 29191
Negative:
-1 x -25542125-5 x -5108425-7 x -3648875-25 x -1021685-35 x -729775-125 x -204337-175 x -145955-875 x -29191
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 25,542,125, 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 | 25,542,125 | |
| -1 | -25,542,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,542,125.
Example:
1 x 25,542,125 = 25,542,125
and
-1 x -25,542,125 = 25,542,125
Notice both answers equal 25,542,125
With that explanation out of the way, let's continue. Next, we take the number 25,542,125 and divide it by 2:
25,542,125 ÷ 2 = 12,771,062.5
If the quotient is a whole number, then 2 and 12,771,062.5 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 | 25,542,125 | |
| -1 | -25,542,125 |
Now, we try dividing 25,542,125 by 3:
25,542,125 ÷ 3 = 8,514,041.6667
If the quotient is a whole number, then 3 and 8,514,041.6667 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 | 25,542,125 | |
| -1 | -25,542,125 |
Let's try dividing by 4:
25,542,125 ÷ 4 = 6,385,531.25
If the quotient is a whole number, then 4 and 6,385,531.25 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 | 25,542,125 | |
| -1 | 25,542,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 125 | 175 | 875 | 29,191 | 145,955 | 204,337 | 729,775 | 1,021,685 | 3,648,875 | 5,108,425 | 25,542,125 |
| -1 | -5 | -7 | -25 | -35 | -125 | -175 | -875 | -29,191 | -145,955 | -204,337 | -729,775 | -1,021,685 | -3,648,875 | -5,108,425 | -25,542,125 |
Here are some more numbers to try:
Try the factor calculator