C# Prime Number Program Tutorial with Examples

C# Prime Number Program Tutorial with Examples

Today, We want to share with you C# Prime Number Program Tutorial with Examples.
In this post we will show you Prime Number Program in C#, hear for C# Program to check if a number is prime or not we will give you demo and example for implement.
In this post, we will learn about Check a Number is Prime Number or not in C# with an example.

Prime Number Program in C#

In this post, we will learn about Prime Number Program in C# with an example.

Now in this post, I will explain Prime Number Program in C#.Net with appropriate example. A prime number is a number which is greater than 1 and divided by 1 or itself. In other words, prime numbers cannot be divided by other numbers than itself or 1.

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For example 2, 3, 5, 7, 11, 13, 17, 19, 23,29,31…. are the prime numbers.

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Now create Console Application in Visual Studio and write below lines of code in it.

using System;
using System.Collections;
using System.Collections.Generic;

namespace infinityknow
    class Program
        static void Main(string[] args)
            // Program to check whether the given number is prime or not

            int number, k, m = 0, flag = 0;
            Console.Write("Enter the Number to check Prime: ");
            number = int.Parse(Console.ReadLine());
            m = number / 2;
            for (k = 2; k <= m; k++)
                if (number % k == 0)
                    Console.Write("Number is not Prime.");
                    flag = 1;
            if (flag == 0)
            Console.Write("Number is Prime.");  

            Console.ReadKey(); // To retain the screen

Read :

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