Prime Number Finders
// It was made with Microsoft Visual Studio C# 2010
// with the Console Application
/* The conclution is to looking for prime numbers from 1 until the number you enter */
Here is
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace tampilkan_bilangan_prima
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("");
Console.WriteLine("");
Console.WriteLine("Ini adalah program pencari bilangan prima");
Console.WriteLine("\nKhusus untuk bilangan positif");
Console.Write("\nSilahkan masukkan angka = ");
string i = Console.ReadLine();
int prima = Int32.Parse(i);
Console.WriteLine("");
Console.Write("Bilangan prima di antaranya adalah ");
switch (prima)
{
case 1:
Console.WriteLine("tidak ada");
break;
case 2:
Console.WriteLine("2");
break;
case 3:
Console.WriteLine("2 3");
break;
case 4:
Console.WriteLine("2 3");
break;
default:
Console.Write("2 3 ");
int a = 5;
int b = 7;
for (a = 5; a <= prima; a += 6)
Console.Write(a + " ");
for (b = 7; b <= prima; b += 6)
Console.Write(b + " ");
break;
}
Console.WriteLine("\n\n\nPress any key to continue");
Console.ReadKey();
}
}
}
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace tampilkan_bilangan_prima
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("");
Console.WriteLine("");
Console.WriteLine("Ini adalah program pencari bilangan prima");
Console.WriteLine("\nKhusus untuk bilangan positif");
Console.Write("\nSilahkan masukkan angka = ");
string i = Console.ReadLine();
int prima = Int32.Parse(i);
Console.WriteLine("");
Console.Write("Bilangan prima di antaranya adalah ");
switch (prima)
{
case 1:
Console.WriteLine("tidak ada");
break;
case 2:
Console.WriteLine("2");
break;
case 3:
Console.WriteLine("2 3");
break;
case 4:
Console.WriteLine("2 3");
break;
default:
Console.Write("2 3 ");
int a = 5;
int b = 7;
for (a = 5; a <= prima; a += 6)
Console.Write(a + " ");
for (b = 7; b <= prima; b += 6)
Console.Write(b + " ");
break;
}
Console.WriteLine("\n\n\nPress any key to continue");
Console.ReadKey();
}
}
}
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