Strong number program using c

Answer 1

Nikhil Aggarwal

strong_number: The sum of factorials of digits of a number is equal to the original number.

void strong_number()
{
int num,i,p,r,sum=0,save_num;
printf("\nEnter a number");
scanf("%d",&num);
save_num=num;
while(num)
{
i=1,p=1;
r=num%10;
while(i<=r)
{
p=p*i;
i++;
} //while
sum=sum+p;
num=num/10;
} //while
if(sum==save_num)
printf("%d is a Strong number", save_num);
else
printf("%d is not a Strong number", save_num);
}