A:
Positive:
1 x 250101055 x 500202171 x 352255355 x 70451
Negative:
-1 x -25010105-5 x -5002021-71 x -352255-355 x -70451
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 25,010,105, 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 | 25,010,105 | |
| -1 | -25,010,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,010,105.
Example:
1 x 25,010,105 = 25,010,105
and
-1 x -25,010,105 = 25,010,105
Notice both answers equal 25,010,105
With that explanation out of the way, let's continue. Next, we take the number 25,010,105 and divide it by 2:
25,010,105 ÷ 2 = 12,505,052.5
If the quotient is a whole number, then 2 and 12,505,052.5 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 | 25,010,105 | |
| -1 | -25,010,105 |
Now, we try dividing 25,010,105 by 3:
25,010,105 ÷ 3 = 8,336,701.6667
If the quotient is a whole number, then 3 and 8,336,701.6667 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 | 25,010,105 | |
| -1 | -25,010,105 |
Let's try dividing by 4:
25,010,105 ÷ 4 = 6,252,526.25
If the quotient is a whole number, then 4 and 6,252,526.25 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 | 25,010,105 | |
| -1 | 25,010,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 71 | 355 | 70,451 | 352,255 | 5,002,021 | 25,010,105 |
| -1 | -5 | -71 | -355 | -70,451 | -352,255 | -5,002,021 | -25,010,105 |
Here are some more numbers to try:
Try the factor calculator