Stirling number
Implement a function to compute Stirling numbers of the second kind S(n,k).
Amicable Numbers Check
Write a function that checks if two numbers are an amicable pair by comparing sums of proper divisors.
Happy number check
Implement a function that returns True if a number is happy, False otherwise.
Correlation Coefficient
Write a pure-Python function that computes the Pearson correlation coefficient between two lists of numbers.
Z score normalization
Compute the z-scores for a list of numbers using the population standard deviation.
Showing 1–5 of 5 challenges · Math & Number Theory
Math & Number Theory — Python coding challenges
What you will find here
This page lists math & number theory challenges — real Python problems you solve in the browser IDE with instant test feedback. Each challenge includes a clear brief, starter code, and automated checks.
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Challenges test what you can build under constraints. For guided teaching, use our Python tutorials. For quick checks, try quizzes or copy snippets from code samples.