Q:
         
         
            
               Write a c program to check whether a number is strong or not.
            
                      
         
             Answer
                        #include<stdio.h>
int main(){
  int num,i,f,r,sum=0,temp;
  printf("Enter a number: ");
  scanf("%d",&num);
 
  temp=num;
  while(num){
      i=1,f=1;
      r=num%10;
      while(i<=r){
         f=f*i;
        i++;
      }
      sum=sum+f;
      num=num/10;
  }
  if(sum==temp)
      printf("%d is a strong number",temp);
  else
      printf("%d is not a strong number",temp);
  return 0;
}
Sample output:
Enter a number: 145
145 is a strong number
          
         
         
         
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