Beginner · ages 8+ · if / else · remainder · loops

Even or odd in Python.

Say whether each number from 1 to 10 is even or odd.

The program

Press Run to see what it prints. Change anything you like, then run it again.

for n in range(1, 11):
    if n % 2 == 0:
        print(n, "is even")
    else:
        print(n, "is odd")

1 is odd
2 is even
3 is odd
4 is even
5 is odd
6 is even
7 is odd
8 is even
9 is odd
10 is even

% gives the remainder after dividing. An even number divides by 2 with no remainder.
if checks a condition. If it is true, the first block runs; otherwise the else block runs.
== asks whether two values are equal. A single = stores a value, so do not mix them up.

Stuck on an error? Read how to debug Python.

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FAQ

What does the even or odd program do?

Say whether each number from 1 to 10 is even or odd. It prints: 1 is odd / 2 is even / 3 is odd …

Which Python ideas does it use?

if / else, remainder, loops. Beginner level, suitable from about age 8.

How do I run it?

Press Run on this page. To run it on your own computer, install Python 3 and save the code in a file ending in .py. It prints the same thing.

What should I try next?

Change the range to 1 to 20. Print only the even numbers. Print whether each number is divisible by 3.

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