prime

C# code to print flrst n prime numbers using do-while loop

C# code to print flrst n prime numbers using do-while loop

In this tutorial, we will discuss the concept of the C# code to print flrst n prime numbers using do-while loop

In this post, we will learn how to print first n prime numbers using a do-while loop in C# programming language with Example program.

First, n prime

Prime number

The number that can be divided by 1 and itself. it is called a prime number

for Example 2,3,5,7,11,13…

Print first n prime numbers using do-while

Print first n Prime numbers

In this program,  the user declares and initializes variables then it will print first n prime numbers,  using the do-while loop in the C# language.

Program 1

// C# code to print first n prime numbers using do-while loop
using System;
namespace primeNumberdo
{
    class first_N_Prime
    {
        static void Main(string[]args)
        {
            int i=1,j=1,num=20,count=0,n=0;
        Console.WriteLine("print first "+num+" prime numbers");
        do{
        j=1;
        count=0;
        do{
            if(i%j==0)
                    count++;
                    j++;
        }while(j<=i);
            if(count==2){
                Console.Write(i+",");
                n++;
        }
        i++;
    }while(n<num);
}
}
}

When the above code is executed, it produces the following result

print first 20 prime numbers
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,

 

Print first n Prime numbers- Entered by user

This program allows the user to enter a positive number for num, then it will print first n prime numbers,  using the do-while loop in the C# language.

Program 2

// C# code to print flrst  n prime numbers using do-while loop
using System;
namespace primeNumber
{
    class first_N_Prime
    {
        static void Main(string[]args)
        {
            int i=1,j=1,num,count=0,n=0;
        Console.WriteLine("print first n prime number ");
        Console.WriteLine("Enter the number");
        num=int.Parse(Console.ReadLine());
        
        do{
        j=1;
        count=0;
        do{
            if(i%j==0)
                    count++;
                    j++;
        }while(j<=i);
            if(count==2){
                Console.Write(i+",");
                n++;
        }
        i++;
    }while(n<num);
}
}
}

When the above code is executed, it produces the following result

print first n prime number
Enter the number
12
2,3,5,7,11,13,17,19,23,29,31,37,

 

 

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Karmehavannan

I am Mr S.Karmehavannan. Founder and CEO of this website. This website specially designed for the programming learners and very especially programming beginners, this website will gradually lead the learners to develop their programming skill.

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