Special Number.

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Program to check whether a given number is Special number or not.


  • A number is said to be special number when the sum of factorial of its digits is equal to the number itself .
  • Example 145 is a Special Number as 1!+4!+5!=145


SOURCE CODE


import java.io.*;
public class Special_Number
{
    public static void main(String args[])throws IOException
    {
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        System.out.print("Enter a Number    :");
        int num=Integer.parseInt(br.readLine());
        int rem,fact,n=num,sum=0;
        while(n>0)
        {
            fact=1;
            rem=n%10;
            for(int j=1;j<=rem;j++)
            {
                fact=fact*j;
            }
            sum=sum+fact;
            n=n/10;
        }
        if(sum==num)
        System.out.println("Yes,It is a special NO.");
        else
        System.out.println("No, It is not a special No.");
    }
}

OUTPUT






Click Here to download Program.


If you have any question then leave a comment below I will do my best to answer that question.

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