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Factorial program in C

#include<stdio.h>
#include<conio.h>
 
int main()
{
   int c, n, fact = 1;
 
   printf("Enter a number to calculate it's factorial\n");
   scanf("%d",&n);
 
   for( c = 1 ; c <= n ; c++ )
         fact = fact*c;
 
   printf("Factorial of %d = %d\n",n,fact);
 
   getch();
   return 0;
}