This is a simple C# program to check whether entered number is a prime number or not. If you are a c# beginner or want to start learning the c# programming language, then this program will help you to understand the basics of c# programming. In this program, I will explain how to write a c# program to check prime number.
Copy the below c# program and execute it in your Microsoft Visual Studio IDE (Integrated Development Environment ). At the end of this program, I have shared the output of program this program.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | using System; public class PrimeNumberProgram { public static void Main(string[] args) { int n, i, m=0, flag=0; Console.Write("Enter any number to check prime number: "); n = int.Parse(Console.ReadLine()); m=n/2; for(i = 2; i <= m; i++) { if(n % i == 0) { Console.Write("This is not Prime Number."); flag=1; break; } } if (flag==0) Console.Write("This is a prime number."); } } |
Enter any number to check prime number: 11
This is a prime number.
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Article Tags: c program, c programs, c# tutorial for beginner, csharp tutorials, prime number program in c, prime number program with example, write a c# program for prime number
