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Wednesday, 29 March 2017

Simple program

Simple program #6 (Check whether a number is prime or not)

Smallest prime number is 2
Not prime number

The program is written in C# programming language and will accept a number as input. The logic of the program is to check whether the number is prime or not.
Simple program #6 by www.imaginationhunt.com
Simple program

Note: If you are new to C# and Console Application. Try to code First C# Program

Note: Read articles on how to use Loops and Conditions.

Let’s find out a simple and easy way to code the program.

Practical Implementation:

using System;

namespace patternProblem.Simple_program
    class Simple6   //checking number prime or not
        static void Main(string[] args)
            Console.Write("Enter a number: ");
            int n = Convert.ToInt32(Console.ReadLine());
            int i = 0;
            if (n < 2)
                Console.WriteLine("Smallest prime number is 2");
            for (i = 2; i < n; i++)
                if (n % i == 0)
                    Console.WriteLine("Not Prime number");
            if (n == i)
                Console.WriteLine("Prime number");


The input number here is 3. The program will check with the number is prime or not. The output is shown below:

Enter a number: 39
Not Prime number
Press any key to continue . . .

For any query, comment us below.

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