Incorrect Logic for Iterative Factorial Function

[0xSumitBanik]

ISSUE

        for (uint i= 2; i >= _n; i++){
            result *= i;
        }

The above code will fail in compilation as:

• i and n cannot be compared in second condition of for loop (as the data type is different (uint i and int n))
• The Second condition will never be true if the value of _n is more than 3. (It should have checked for less than <= _n)

Solution

Fix the logic for the "for" loop related to the iterative implementation of factorial.

[mkubdev]

I close since #7 is merged. (: