Learn C language Part 10 Factorial program using while loop in c

#include <stdio.h>

#include <conio.h>



main()

{



int fac=1,x=4;



printf("Enter the number: ");

scanf("%d",&x);



int y=x;

while(x>1)

{



fac=fac* x;



x--;

}



printf("%d ! = %d ",y,fac);



}