Factorial of a large number

Out of 7 I have passed 5. Spent 2 hours in searching what is wrong with this.
Help Me!

Use array instead of string, since you have to store result in array only, and then you have to print the array in reverse order

Yup. I have done that but, if possible please let me know where this code is stucking.


This is the code which you can refer for your reference