STRONG NUMBER

 Strong number =

e. g.    n=145

if  =1!+4!+5!=1+24+120=145

strong number ;

#include<stdio.h>
#include<conio.h>
void main()
{
    int n,i,j,temp,r,fact,sum=0;
    printf("enter number = ");
    scanf("%d",&n);
    temp=n;
    while(n!=0)
    {
        r=n%10;
        fact=1;
        for(i=1; i<=r; i++)
        {
            fact=fact*i;
        }
        sum=sum+fact;
        n=n/10;
    }
    n=temp;
    if(n==sum)
    {
        printf("strong number ",n);
    }
    else
    {
        printf("not strong number ",n);
    }
    getch();
}

OUTPUT :

enter number = 145

strong number