# C# Program to Check Even Number

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## What are Even Numbers?

An integer (never a fraction) that can be divided exactly by 2. For example, 10 is an even number, i.e., 10 % 2 = 0.

Note: % is a Modulus (Division Remainder) operator, it finds the remainder after division of one number by another. Please check our Arithmetic Operators for more details.

Tips: It is recommended to use our online Even Numbers calculator for better understanding.

## Using For Loop

In the following example, we will find all the Even Numbers between 10 and 25 using for loop.

### Example

C# Compiler
using System; namespace myApp { class Program { static void Main(string[] args) { int start = 10; int end = 25; Console.WriteLine("Even numbers between {0} and {1}: ", start, end); for(start=start; start<=end; start++) { if(start % 2 == 0) Console.Write(start +" "); } } } }

## Using While Loop

In the following example, we will find all the Even Numbers between 10 and 25 using while loop.

### Example

C# Compiler
using System; namespace myApp { class Program { static void Main(string[] args) { int start = 10; int end = 25; Console.WriteLine("Even numbers between {0} and {1}: ", start, end); while(start <= end) { if(start % 2 == 0) Console.Write(start +" "); start++; } } } }

## Using do while Loop

In the following example, we will find all the Even Numbers between 10 and 25 using do while loop.

### Example

C# Compiler
using System; namespace myApp { class Program { static void Main(string[] args) { int start = 10; int end = 25; Console.WriteLine("Even numbers between {0} and {1}: ", start, end); do{ if(start % 2 == 0) Console.Write(start +" "); start++; }while(start <= end); } } }

## Even Numbers between any Given Range

In the following example, we will find all the Even numbers between any given range.

### Example

C# Compiler
using System; namespace myApp { class Program { static void Main(string[] args) { Console.Write("Enter a (int) starting number: "); int start = Convert.ToInt32(Console.ReadLine()); Console.Write("Enter an (int) ending number: "); int end = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("\nEven numbers between {0} and {1}: ", start, end); for(start=start; start<=end; start++) { if(start % 2 == 0) Console.Write(start +" "); } } } }

## Check Whether the Given Number is Even or Odd

In the following example, we will check whether the given number is an Even number or Odd number.

### Example

C# Compiler
using System; namespace myApp { class Program { static void Main(string[] args) { Console.Write("Enter a (int) number: "); int num = Convert.ToInt32(Console.ReadLine()); if(num % 2 == 0) Console.Write("{0} is an even number", num); else Console.Write("{0} is an odd number", num); } } }

## Reminder

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