Unraveling the Mystery of Even and Odd Numbers

When it comes to numbers, there’s a fundamental distinction that sets them apart: evenness and oddness. But what exactly makes a number even or odd?

The Secret Lies in Division

To uncover the truth, we need to dive into the world of division. You see, a number is even if it can be divided by 2 without leaving a remainder. That’s where the modulo operator (%) comes in – it helps us compute the remainder of a division operation. If the result is not zero, then the number is odd.

A Pythonic Approach

Let’s put this concept into practice using Python. We’ll create a program that asks the user for a number and determines whether it’s even or odd.

“`

Get user input

num = int(input(“Enter a number: “))

Check if the number is even or odd

if num % 2 == 0:
print(f”{num} is even.”)
else:
print(f”{num} is odd.”)
“`

Understanding the Code

In this program, we first prompt the user to enter a number. Then, we use the modulo operator to find the remainder of the division operation. If the result is zero, we print out that the number is even; otherwise, it’s odd. The {} is a replacement field for the num variable, which allows us to insert the user-input value into the output string.

Exploring Further

Want to take your Python skills to the next level? Check out our article on Python Program to Check if a Number is Positive, Negative or 0, where you’ll learn how to tackle another fundamental problem in programming.