Strong Number

Find Strong Number Using C++

First We Need to Know What is Strong Number ?


Strong Number : Strong Number is the Sum of Factorial Of individual Digits of Number

For Example : 145 is a Strong Number means

1!=1;
4!=24;
5!=120;

1! + 4! + 5! = 145

========================================================================

            #include<iostream>

using namespace std;

main()

{

int num;

int sum=0;

int digit;

cout<<"Enter A Number\n";

cin>>num;

int i=num;

while(num>0)

{

   digit=num%10;

   int fact=1;

   for(int x=1;x<=digit;x++)

   {

    fact=fact*x;

}

sum=sum+fact;

num=num/10;

} 

if(sum==i)

{

cout<<sum<<"  Is A Strong Number \n ";

}

else 

cout<<"Is NOT A Strong  Number \n";

}

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OutPut:

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