A:
Positive:
1 x 255501655 x 511003337 x 690545167 x 152995185 x 138109827 x 30895835 x 305994135 x 6179
Negative:
-1 x -25550165-5 x -5110033-37 x -690545-167 x -152995-185 x -138109-827 x -30895-835 x -30599-4135 x -6179
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 25,550,165, 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 | 25,550,165 | |
| -1 | -25,550,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,550,165.
Example:
1 x 25,550,165 = 25,550,165
and
-1 x -25,550,165 = 25,550,165
Notice both answers equal 25,550,165
With that explanation out of the way, let's continue. Next, we take the number 25,550,165 and divide it by 2:
25,550,165 ÷ 2 = 12,775,082.5
If the quotient is a whole number, then 2 and 12,775,082.5 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 | 25,550,165 | |
| -1 | -25,550,165 |
Now, we try dividing 25,550,165 by 3:
25,550,165 ÷ 3 = 8,516,721.6667
If the quotient is a whole number, then 3 and 8,516,721.6667 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 | 25,550,165 | |
| -1 | -25,550,165 |
Let's try dividing by 4:
25,550,165 ÷ 4 = 6,387,541.25
If the quotient is a whole number, then 4 and 6,387,541.25 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 | 25,550,165 | |
| -1 | 25,550,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 167 | 185 | 827 | 835 | 4,135 | 6,179 | 30,599 | 30,895 | 138,109 | 152,995 | 690,545 | 5,110,033 | 25,550,165 |
| -1 | -5 | -37 | -167 | -185 | -827 | -835 | -4,135 | -6,179 | -30,599 | -30,895 | -138,109 | -152,995 | -690,545 | -5,110,033 | -25,550,165 |
Here are some more numbers to try:
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