A:
Positive:
1 x 258644055 x 51728817 x 369491535 x 73898349 x 527845229 x 112945245 x 105569461 x 561051145 x 225891603 x 161352305 x 112213227 x 8015
Negative:
-1 x -25864405-5 x -5172881-7 x -3694915-35 x -738983-49 x -527845-229 x -112945-245 x -105569-461 x -56105-1145 x -22589-1603 x -16135-2305 x -11221-3227 x -8015
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 25,864,405, 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 | 25,864,405 | |
| -1 | -25,864,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,864,405.
Example:
1 x 25,864,405 = 25,864,405
and
-1 x -25,864,405 = 25,864,405
Notice both answers equal 25,864,405
With that explanation out of the way, let's continue. Next, we take the number 25,864,405 and divide it by 2:
25,864,405 ÷ 2 = 12,932,202.5
If the quotient is a whole number, then 2 and 12,932,202.5 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 | 25,864,405 | |
| -1 | -25,864,405 |
Now, we try dividing 25,864,405 by 3:
25,864,405 ÷ 3 = 8,621,468.3333
If the quotient is a whole number, then 3 and 8,621,468.3333 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 | 25,864,405 | |
| -1 | -25,864,405 |
Let's try dividing by 4:
25,864,405 ÷ 4 = 6,466,101.25
If the quotient is a whole number, then 4 and 6,466,101.25 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 | 25,864,405 | |
| -1 | 25,864,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 229 | 245 | 461 | 1,145 | 1,603 | 2,305 | 3,227 | 8,015 | 11,221 | 16,135 | 22,589 | 56,105 | 105,569 | 112,945 | 527,845 | 738,983 | 3,694,915 | 5,172,881 | 25,864,405 |
| -1 | -5 | -7 | -35 | -49 | -229 | -245 | -461 | -1,145 | -1,603 | -2,305 | -3,227 | -8,015 | -11,221 | -16,135 | -22,589 | -56,105 | -105,569 | -112,945 | -527,845 | -738,983 | -3,694,915 | -5,172,881 | -25,864,405 |
Here are some more numbers to try:
Try the factor calculator