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using System;
using System.Collections.Generic;
using System.Text;
namespace BilanganPrima
{
class Program
{
static void Main(string[] args)
{
int bil, a, b, c, n;
n = 0;
Console.WriteLine("Masukkan sebuah bilangan[1..100] :");
bil = int.Parse( Console.ReadLine());
Console.WriteLine(bil +" bilangan prima : ", bil);
for (a = 2; a < 1000000; a++)
{
for (b = 2; b <= a; b++)
{
c = a % b;
if (c == 0) { break; }
}
if (b == a)
{
n = n + 1;
Console.WriteLine( a);
}
if (bil == n) { break; }
}
Console.ReadLine();
}
}
}
using System;
using System.Collections.Generic;
using System.Text;
namespace BilanganPrimaAtauBukan
{
class Program
{
static void Main(string[] args)
{
int bil,i;
string lagi = "";
while (lagi != "Y")
{
Console.WriteLine("Masukkan sebuah angka : ");
bil = int.Parse(Console.ReadLine());
if (bil == 1)
Console.WriteLine("Bukan bilangan prima");
else if (bil == 2 || bil == 3)
Console.WriteLine("bilangan prima");
else if (bil % 2 == 0)
Console.WriteLine("Bukan bilangan prima");
else if (bil % 3 == 0)
Console.WriteLine("Bukan bilangan prima");
else
Console.WriteLine(" bilangan prima");
Console.WriteLine("Lagi? (Y/N)");
lagi = Console.ReadLine();
Console.Clear();
}
}
}
}
using System;using System.Collections.Generic;using System.Text;
namespace ConsoleApplication2{ class Program { static void Main(string[] args) { int N; int i, a, b ,c; string again; Console.BackgroundColor = ConsoleColor.Black; Console.ForegroundColor = ConsoleColor.Green; do { Console.WriteLine("Masukkan jumlah anggota deret yg diinginkan : "); N = int.Parse( Console.ReadLine()); Console.WriteLine("Angka pertama : "); a = int.Parse( Console.ReadLine()); Console.WriteLine("Angka kedua : "); b = int.Parse( Console.ReadLine());
Console.WriteLine(a + " " + b + " "); for (i = 3; i <= N; i++) { c = a + b; a = b; b = c; Console.WriteLine(c + " "); } Console.WriteLine("Ulang lagi? (Yes/No)"); again = Console.ReadLine(); Console.Clear(); } while(again!= "No"); } }}