Csharp:Print all prime numbers between 1 to 100 using do-while loop

Csharp:Print all prime numbers between 1 to 100 using do-while loop

In this tutorial, we will discuss the concept of the Csharp:Print all prime numbers between 1 to 100 using do-while loop

In this post, we will learn how to print all  prime numbers 1 to  100 using do-while loop in C# programming language with Example program.

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…

Csharp:Print  prime numbers between 1 to 100 using do-whie loop

Print  prime numbers between 1 to 100 – method 1

In this program,  the user declares and initializes variables then it will print prime numbers from 1 to 100,  using the do-whie loop in the C# language.

Program 1

//C#:Print all prime numbers between 1 to 100 using do-while loop
using System;
namespace primeNumber
{
    class first1toNPrime
    {
        static void Main(string[]args)
        {
        Console.WriteLine("print prime number between 1 to 100");
        bool isPrime=true;
        var i=2;
        do{
            var j=2;
            do{
            if(i!=j && i%j==0){
                    isPrime=false;
                break;
            }
            j++;
        }while(j<=100);
            if(isPrime){
                Console.Write(i+",");
        }
        isPrime=true;
         i++;
    }while( i<=100);
    Console.ReadKey();
}
}
}

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

print prime number between 1 to 100
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,

Print  prime numbers between 1 to 100 – method 2

In this program,  the user declares and initializes variables then it will print prime numbers from 1 to 100,  using the do-whie loop in the C# language.

Program 2

//C# program to print all prime numbers between 1 to 100 using do-while loop
using System;
namespace primeNumber
{
    class first_N_Prime
    {
        static void Main(string[]args)
        {
            int i=1,count=0;
        Console.WriteLine("Prime numbers between 1 to 100 ");
    
        int n=0;
        do{
        
        count=0;
        int j=1;
    do{
            if(i%j==0)
                    count++;
                    j++;
        }while(j<=i);
            if(count==2){
                Console.Write(i+",");
                
        }
        i++;
        n++;
    }while( n<100);
}
}
}

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

Prime numbers between 1 to 100
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,

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