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 Colorado System
Skills you'll gain: Routing Protocols, Network Routing, TCP/IP, Network Protocols, Network Architecture, Network Performance Management, Computer Networking, OSI Models, Local Area Networks, Graph Theory, Algorithms
Intermediate · Course · 1 - 3 Months

Multiple educators
Skills you'll gain: Policy Analysis, Innovation, Systems Thinking, Storytelling, Visionary, Sociology, Social Sciences, Creative Thinking, Economics, Policy, and Social Studies, Social Impact, Sustainable Development, Sustainable Systems, Social Justice, Cultural Diversity, Critical Thinking, Case Studies, Environmental Science, Spatial Analysis, Human Centered Design, Public Policies
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Algebra, Calculus, Graphing, Applied Mathematics, Data Science, Derivatives, Numerical Analysis, Mathematical Theory & Analysis
Intermediate · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Financial Accounting, Balance Sheet, Financial Reporting, Revenue Recognition, Income Statement, Financial Statements, Generally Accepted Accounting Principles (GAAP), Contract Accounting, Accounting, Accrual Accounting, Cash Flows, Financial Analysis, International Financial Reporting Standards
Build toward a degree
Intermediate · Course · 1 - 3 Months

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

University of Cambridge
Skills you'll gain: Human Learning, Child Development, Psychology, Empathy & Emotional Intelligence, Teaching, Decision Making, Learning Theory, Instructional Strategies, Pedagogy, Learning Strategies, Developmental Disabilities, Empathy, Working With Children, Neurology, Magnetic Resonance Imaging, Disabilities, Autism Spectrum Disorders, Medical Imaging, Electrophysiology, Human Development
Beginner · Specialization · 3 - 6 Months

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

Universidade de São Paulo
Skills you'll gain: Economics, Financial Market, Financial Policy, Supply And Demand, Financial Modeling, Policy Analysis, Fiscal Management, Market Dynamics, Consumer Behaviour, Expectation Management, Decision Making
Intermediate · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Virtual Teams, Team Leadership, Intercultural Competence, Organizational Leadership, Team Management, Cultural Diversity, Team Building, Diversity and Inclusion, Cultural Sensitivity, Leadership, Leadership and Management, Cross-Functional Collaboration, Cultural Responsiveness, Interpersonal Communications, Conflict Management, Relationship Building, Culture, Stakeholder Communications, Communication Strategies, Diversity Awareness
Beginner · Specialization · 3 - 6 Months

University of Rochester
Skills you'll gain: Music History, Music, Music Theory, Musical Composition, Instrumental Music, Music Performance, Creativity
Beginner · Course · 1 - 3 Months

Universidad de los Andes
Skills you'll gain: Community Development, Ethical Standards And Conduct, Strategic Leadership, Complex Problem Solving, Adaptability, Systems Thinking, Leadership, Business Risk Management, Self-Awareness, Emotional Intelligence
Intermediate · Course · 1 - 4 Weeks

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