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.
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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