A:
Positive:
1 x 259789397 x 371127759 x 440321413 x 62903
Negative:
-1 x -25978939-7 x -3711277-59 x -440321-413 x -62903
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 25,978,939, 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 | 25,978,939 | |
| -1 | -25,978,939 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,978,939.
Example:
1 x 25,978,939 = 25,978,939
and
-1 x -25,978,939 = 25,978,939
Notice both answers equal 25,978,939
With that explanation out of the way, let's continue. Next, we take the number 25,978,939 and divide it by 2:
25,978,939 ÷ 2 = 12,989,469.5
If the quotient is a whole number, then 2 and 12,989,469.5 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 | 25,978,939 | |
| -1 | -25,978,939 |
Now, we try dividing 25,978,939 by 3:
25,978,939 ÷ 3 = 8,659,646.3333
If the quotient is a whole number, then 3 and 8,659,646.3333 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 | 25,978,939 | |
| -1 | -25,978,939 |
Let's try dividing by 4:
25,978,939 ÷ 4 = 6,494,734.75
If the quotient is a whole number, then 4 and 6,494,734.75 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 | 25,978,939 | |
| -1 | 25,978,939 |
If you did it right, you will end up with this table:
| 1 | 7 | 59 | 413 | 62,903 | 440,321 | 3,711,277 | 25,978,939 |
| -1 | -7 | -59 | -413 | -62,903 | -440,321 | -3,711,277 | -25,978,939 |
Here are some more numbers to try:
Try the factor calculator