A:
Positive:
1 x 250515055 x 501030129 x 863845145 x 172769197 x 127165877 x 28565985 x 254334385 x 5713
Negative:
-1 x -25051505-5 x -5010301-29 x -863845-145 x -172769-197 x -127165-877 x -28565-985 x -25433-4385 x -5713
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 25,051,505, 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 | 25,051,505 | |
| -1 | -25,051,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,051,505.
Example:
1 x 25,051,505 = 25,051,505
and
-1 x -25,051,505 = 25,051,505
Notice both answers equal 25,051,505
With that explanation out of the way, let's continue. Next, we take the number 25,051,505 and divide it by 2:
25,051,505 ÷ 2 = 12,525,752.5
If the quotient is a whole number, then 2 and 12,525,752.5 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 | 25,051,505 | |
| -1 | -25,051,505 |
Now, we try dividing 25,051,505 by 3:
25,051,505 ÷ 3 = 8,350,501.6667
If the quotient is a whole number, then 3 and 8,350,501.6667 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 | 25,051,505 | |
| -1 | -25,051,505 |
Let's try dividing by 4:
25,051,505 ÷ 4 = 6,262,876.25
If the quotient is a whole number, then 4 and 6,262,876.25 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 | 25,051,505 | |
| -1 | 25,051,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 197 | 877 | 985 | 4,385 | 5,713 | 25,433 | 28,565 | 127,165 | 172,769 | 863,845 | 5,010,301 | 25,051,505 |
| -1 | -5 | -29 | -145 | -197 | -877 | -985 | -4,385 | -5,713 | -25,433 | -28,565 | -127,165 | -172,769 | -863,845 | -5,010,301 | -25,051,505 |
Here are some more numbers to try:
Try the factor calculator