Java Program

Object:-Write a Program in Java to check whether number is prime or not.

class prime
{
public static void main(String...s)
    {
        int n,i;
        System.out.println("Enter the Number:");
        n=Integer.parseInt(s[0]);        
        for(i=2; i < n;  ++i)
        {
            if(n%i==0)
                break;
        }        
        if(i==n)
            System.out.println("Number is prime");
        else
            System.out.println("Number is not prime");
    }
}

Output

Enter the Number:5
Number is prime
 

Explanation

A number is prime if it is divisible by 1 or itself. For example 2, 3, 5, etc are prime numbers while 4, 6, 8, etc are not prime.








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