Python Program to Check Even Number

Posted in Python Tutorial

Updated on Oct 31, 2024

By Mari Selvan

👁️ 149 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

🙋 Introduction

In the realm of programming, dealing with numbers is a fundamental task. One common requirement is checking whether a given number is even or not. An even number is an integer that is exactly divisible by 2 without leaving a remainder.

In this tutorial, we will explore a Python program designed to check whether a given number is even. The program involves using the modulo operator to determine if the number is divisible by 2.

📄 Example

Let's delve into the Python code that accomplishes this task.

is_even.py

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# Function to check if a number is even
def is_even(number):
    # If the remainder is zero, the number is even
    return number % 2 == 0

# Driver program
if __name__ == "__main__":
    # Replace this value with the number you want to check
    number = 10

    # Call the function to check if the number is even
    if is_even(number):
        print(f"{number} is an even number.")
    else:
        print(f"{number} is not an even number.")

💻 Testing the Program

To test the program with different numbers, modify the value of number in the code.

Output

10 is an even number.

🧠 How the Program Works

The program defines a function is_even that takes a number as input and returns True if the number is even, and False otherwise.
Inside the if __name__ == "__main__": block, replace the value of number with the desired number you want to check.
The program calls the is_even function and prints the result using print().

📏 Between the Given Range

Let's take a look at the Python code that performs the even number check and generates the output.

is_even.py

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# Function to check if a number is even
def is_even(number):
    return number % 2 == 0

# Generate a list of even numbers in the range 1 to 10
even_numbers = [str(num) for num in range(1, 11) if is_even(num)]

# Output the result
output = " ".join(even_numbers)
print(f"Even numbers in the range 1 to 10:\n{output}")

💻 Testing the Program

Output

Even numbers in the range 1 to 10:
2 4 6 8 10

Run the script to see the even numbers in the range from 1 to 10.

🧠 How the Program Works

The program defines a function is_even that takes a number as input and returns True if it's even, and False otherwise.
It then uses a list comprehension to generate a list of even numbers in the range from 1 to 10.
Finally, it formats and prints the output in the specified format.