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.

University of Geneva
Skills you'll gain: Climate Change Adaptation, Water Resources, Hydrology, Risk Management, Water Quality, Natural Resource Management, Environment, Climate Change Mitigation, Sustainable Development, Social Network Analysis, Governance, Health Disparities, Environmental Science
Intermediate · Course · 1 - 3 Months

Skills you'll gain: API Gateway, Application Programming Interface (API), Cloud API, API Design, Continuous Deployment, CI/CD, Restful API, Continuous Integration, Middleware, JSON, Software Versioning, Proxy Servers, Scalability, Extensible Markup Language (XML)
Beginner · Course · 1 - 3 Months
Johns Hopkins University
Skills you'll gain: Advocacy, Health Systems, Health Policy, Health Care Administration, Community Health, Primary Care, Health Care, Public Health, Systems Thinking, Governance, Training Programs, Case Studies, Education and Training
Beginner · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: Algorithms, Programming Principles, Computer Programming, Graph Theory, Computational Thinking, Data Structures, Program Development
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Electrical Engineering, Numerical Analysis, Linear Algebra, Physics, Angular, Applied Mathematics, Advanced Mathematics, Mathematical Modeling, Engineering Analysis, Calculus, Differential Equations, Simulations, Physical Science
Build toward a degree
Intermediate · Specialization · 1 - 3 Months

University of California San Diego
Skills you'll gain: Bioinformatics, Molecular Biology, Microbiology, Infectious Diseases, Biotechnology, Computational Thinking, Algorithms, Python Programming
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Database Design, Database Management Systems, Relational Databases, Database Theory, Databases, Database Architecture and Administration, Data Modeling, Data Integrity, Diagram Design
Beginner · Course · 1 - 4 Weeks

University of Manchester
Skills you'll gain: Sustainable Business, Corporate Sustainability, Business Ethics, Environmental Social And Corporate Governance (ESG), Sustainable Development, Intercultural Competence, Ethical Standards And Conduct, Team Oriented, Decision Making, Cultural Diversity, Systems Thinking, Stakeholder Management
Mixed · Course · 1 - 3 Months

EDHEC Business School
Skills you'll gain: Text Mining, Network Analysis, Data Visualization Software, Machine Learning Methods, Unstructured Data, Predictive Modeling, Web Scraping, Social Network Analysis, Financial Statements, Financial Market, Financial Analysis, Investments, Financial Modeling, Asset Management, Python Programming, Data Analysis, Consumer Behaviour
Intermediate · Course · 1 - 4 Weeks

École Polytechnique
Skills you'll gain: Physics, Mechanics, Linear Algebra, Probability, Calculus, Differential Equations, Mathematical Theory & Analysis, Advanced Mathematics, Experimentation
Intermediate · Course · 1 - 3 Months
University of Washington
Skills you'll gain: Unsupervised Learning, Supervised Learning, Statistical Machine Learning, Predictive Analytics, Advanced Analytics, Data Analysis, R Programming, Statistical Methods, Statistical Inference, Statistical Analysis, Machine Learning Algorithms, Machine Learning, Graph Theory, Classification Algorithms, Probability & Statistics, Big Data
Mixed · Course · 1 - 4 Weeks

Lund University
Skills you'll gain: Climate Change Adaptation, Sustainable Development, Sustainable Design, Governance, Water Sustainability, Sustainable Technologies, Environment, Systems Thinking, Environmental Science, Climate Change Mitigation, Case Studies, Water Resources, Business Modeling, Stakeholder Engagement
Beginner · Course · 1 - 3 Months