Factorial of a Big Number

#include<stdio.h> int main() { int arr[200],n,count,temp,i; arr[0]=1; count=0; printf("Enter the number whose factorial you want to find: "); scanf("%d",&n); for(; n>=2; n--) { temp=0; for(i=0; i<=count; i++) { temp=(arr[i]*n)+temp; arr[i]=temp%10; temp=temp/10; } while(temp>0) { arr[++count]=temp%10; temp=temp/10; } } for(i=count; i>=0; i--) printf("%d",arr[i]); return 0; }