Question

wap in java to input a no. and check and print whether it is a factorial of its digits is equal to the no.​

Answer 1

import java.util.*;

public class SpecialNumberCheck

{

public static void main(String args[])

{

Scanner ob=new Scanner(System.in);

System.out.println("Enter the number to be checked.");

int num=ob.nextInt();

int sum=0;int temp=num;

while(temp!=0)

{

int a=temp%10;int fact=1;

for(int i=1;i<=a;i++)

{

fact=fact*i;

}

sum=sum+fact;

temp=temp/10;

}

if(sum==num)

{

System.out.println(num+" is a Special Number.");

}

else

{

System.out.println(num+" is not a Special Number.");

}

}

}