Number theory courses can help you learn prime numbers, divisibility rules, modular arithmetic, and integer properties. You can build skills in problem-solving, logical reasoning, and algorithmic thinking, that support tackling complex mathematical challenges. Many courses introduce tools like Python for implementing algorithms and mathematical software for exploring number patterns, enabling you to apply your knowledge in practical situations such as cryptography and coding theory.

Johns Hopkins University
Skills you'll gain: Political Sciences, Policy Analysis, Social Justice, Social Sciences, Public Policies, Game Theory, Demography, Logical Reasoning, Applied Mathematics
Mixed · Course · 1 - 3 Months

Skills you'll gain: Journals, Music Theory, Music, Instrumental Music, Music Performance, Creativity, Coordination
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Descriptive Statistics, Linear Algebra, Exploratory Data Analysis, Data-Driven Decision-Making, Data Analysis, Bayesian Statistics, Statistics, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Probability, Regression Analysis, Calculus, Statistical Analysis, Advanced Mathematics, Applied Mathematics, Probability Distribution, Mathematical Modeling, Integral Calculus, Algebra, Machine Learning Algorithms
Beginner · Course · 1 - 3 Months

Universiteit Leiden
Skills you'll gain: Law, Regulation, and Compliance, Legal Proceedings, International Relations, Conflict Management, Child Welfare, Ethical Standards And Conduct, Legal Research, Case Law, Journalism, Research, Investigation, Case Studies
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Arithmetic, Logical Reasoning, Quantitative Research, Estimation, Applied Mathematics, Advanced Mathematics, Algebra, Complex Problem Solving, General Mathematics
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Market Dynamics, Business Economics, Economics, Business Operations, Supply And Demand, Price Negotiation, Business Strategy, Market Analysis, Competitive Analysis, Consumer Behaviour, Decision Making
Beginner · Course · 1 - 4 Weeks

The University of Edinburgh
Skills you'll gain: Music Theory, Music, Classical Music, Musical Composition
Beginner · Course · 1 - 3 Months

Tecnológico de Monterrey
Skills you'll gain: Calculus, Integral Calculus, Advanced Mathematics, Graphing, Trigonometry, Mathematical Modeling, Mathematical Theory & Analysis, Algebra, Computational Thinking, Applied Mathematics, Mathematical Software, Derivatives
Mixed · Course · 3 - 6 Months

University of California San Diego
Skills you'll gain: Logical Reasoning, Computational Logic, Deductive Reasoning, Computational Thinking, Theoretical Computer Science, Combinatorics, Algorithms, Python Programming, Computer Science, Program Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: Generative AI Agents, LLM Application, Agentic systems, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Artificial Intelligence, Tool Calling, AI Product Strategy, Large Language Modeling, Responsible AI, Decision Support Systems, Application Deployment, Performance Testing
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Cryptography, Encryption, Cybersecurity, Computer Security, Theoretical Computer Science, Information Architecture
Intermediate · Course · 1 - 4 Weeks

The University of Tokyo
Skills you'll gain: Game Theory, Socioeconomics, Social Sciences, Behavioral Economics, Economics, Strategic Decision-Making, Decision Making, Business Strategy, Strategic Planning, Risk Appetite, Probability
Beginner · Course · 1 - 4 Weeks