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 Michigan
Skills you'll gain: Constructive Feedback, Cooperation, Decision Making, Team Performance Management, Team Building, Teamwork, Peer Review, Team Management, Independent Thinking, Personal Development, Empathy, Professional Development, Self-Awareness, Rapport Building, Critical Thinking, Mentorship, Communication Strategies, People Management, Leadership Development, Communication
Beginner · Specialization · 3 - 6 Months

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Energy and Utilities, Chemical Engineering, Chemistry, Process Engineering, Mechanical Engineering, Environmental Engineering, Oil and Gas, Sustainable Engineering, Engineering Calculations, Physical Science, Mathematical Modeling
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Color Theory, Disabilities, Social Justice, Performing Arts, Cultural Diversity, Art History, Aesthetics, Sociology, Diversity Equity and Inclusion Initiatives, Advocacy, World History, Political Sciences, Emerging Technologies
Beginner · Course · 1 - 4 Weeks

Lund University
Skills you'll gain: Radiation Therapy, Diagnostic Radiology, Engineering, Scientific, and Technical Instruments, Electrical Engineering, Electronics, Medical Equipment and Technology, Physics, Electronic Systems, Sustainable Technologies, Equipment Design, Materials science
Intermediate · Course · 1 - 3 Months

The State University of New York
Skills you'll gain: Benchmarking, Professional Development, Smart Goals, Planning, Performance Analysis, Job Analysis, Human Capital, Organizational Skills, Personal Development, Dashboard, Microsoft Excel, Goal Setting, Business Strategy, Writing
Advanced · Course · 1 - 3 Months

Scrimba
Skills you'll gain: HTML and CSS, Mobile Development, Web Applications, ChatGPT, GitHub, Front-End Web Development, Javascript, Application Deployment, Web Development, Version Control, Responsive Web Design, Video Game Development, Cascading Style Sheets (CSS), Artificial Intelligence, User Interface (UI) Design, Computer Programming, Database Application, Machine Learning
Beginner · Course · 1 - 3 Months

Lund University
Skills you'll gain: Sustainable Development, Systems Thinking, Sustainable Business, Sustainable Technologies, Sustainability Standards, Policy Development, Environmental Policy, Environmental Science, Climate Change Programs, Innovation, Environment and Resource Management, Natural Resource Management, Mathematical Modeling, Governance, Geospatial Information and Technology
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Control Systems, Vibrations, Torque (Physics), Mathematical Modeling, Differential Equations, Simulation and Simulation Software, Engineering Analysis, Applied Mathematics, Mechanics
Advanced · Course · 1 - 4 Weeks

Universidad Austral
Skills you'll gain: Mathematics Education, Childhood Education and Development, Geometry, Arithmetic, Pedagogy, General Mathematics, Learning Theory, Discussion Facilitation
Beginner · Course · 1 - 4 Weeks

Yonsei University
Skills you'll gain: Political Sciences, Social Studies, Policy Analysis, Economic Development, Social Sciences, International Relations, Diplomacy, Economics, Governance
Beginner · Course · 1 - 3 Months

Rice University
Skills you'll gain: Economics, Supply And Demand, Market Dynamics, Tax, Market Analysis, International Relations, Operating Cost, Policy Analysis, Consumer Behaviour, Decision Making
Beginner · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Staff Management, Business Management, People Management, Leadership and Management, Operations Management, Business Administration, Leadership, Workforce Planning, Organizational Strategy, Decision Making, Goal Setting
Mixed · Course · 1 - 4 Weeks