A:
Positive:
1 x 257464255 x 514928519 x 135507525 x 102985767 x 38427595 x 271015335 x 76855475 x 54203809 x 318251273 x 202251675 x 153714045 x 6365
Negative:
-1 x -25746425-5 x -5149285-19 x -1355075-25 x -1029857-67 x -384275-95 x -271015-335 x -76855-475 x -54203-809 x -31825-1273 x -20225-1675 x -15371-4045 x -6365
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 25,746,425, 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 | 25,746,425 | |
| -1 | -25,746,425 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,746,425.
Example:
1 x 25,746,425 = 25,746,425
and
-1 x -25,746,425 = 25,746,425
Notice both answers equal 25,746,425
With that explanation out of the way, let's continue. Next, we take the number 25,746,425 and divide it by 2:
25,746,425 ÷ 2 = 12,873,212.5
If the quotient is a whole number, then 2 and 12,873,212.5 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 | 25,746,425 | |
| -1 | -25,746,425 |
Now, we try dividing 25,746,425 by 3:
25,746,425 ÷ 3 = 8,582,141.6667
If the quotient is a whole number, then 3 and 8,582,141.6667 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 | 25,746,425 | |
| -1 | -25,746,425 |
Let's try dividing by 4:
25,746,425 ÷ 4 = 6,436,606.25
If the quotient is a whole number, then 4 and 6,436,606.25 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 | 25,746,425 | |
| -1 | 25,746,425 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 67 | 95 | 335 | 475 | 809 | 1,273 | 1,675 | 4,045 | 6,365 | 15,371 | 20,225 | 31,825 | 54,203 | 76,855 | 271,015 | 384,275 | 1,029,857 | 1,355,075 | 5,149,285 | 25,746,425 |
| -1 | -5 | -19 | -25 | -67 | -95 | -335 | -475 | -809 | -1,273 | -1,675 | -4,045 | -6,365 | -15,371 | -20,225 | -31,825 | -54,203 | -76,855 | -271,015 | -384,275 | -1,029,857 | -1,355,075 | -5,149,285 | -25,746,425 |
Here are some more numbers to try:
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