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.

Yale University
Skills you'll gain: Classical Music, Music History, Music, Music Theory, Instrumental Music, Musical Composition, Art History
Mixed · Course · 1 - 3 Months

National Taiwan University
Skills you'll gain: Game Theory, Business Strategy, Business, Business Marketing, Strategic Decision-Making, Decision Making, Case Studies, Negotiation, Competitive Analysis, Market Dynamics, Product Knowledge
Beginner · Course · 1 - 3 Months

National Taiwan University
Skills you'll gain: Reinforcement Learning, Theoretical Computer Science, Supervised Learning, Classification Algorithms, Model Evaluation, Machine Learning, Artificial Neural Networks, Artificial Intelligence, Deep Learning, Decision Tree Learning, Algorithms, Convolutional Neural Networks, Network Architecture
Intermediate · Course · 1 - 3 Months

Yale University
Skills you'll gain: Negotiation, Contract Negotiation, Conflict Management, Mediation, Leadership, Communication, Persuasive Communication, Influencing, Relationship Building, Collaboration, Game Theory, Strategic Decision-Making
Mixed · Course · 1 - 3 Months

California Institute of the Arts
Skills you'll gain: Typography, Design Elements And Principles, Graphic Design, Graphic and Visual Design Software, Design, Logo Design, Digital Design, Layout Design, Color Theory, Image Quality, Photo Editing, Creativity
Beginner · Course · 1 - 3 Months

Skills you'll gain: IT Security Architecture, Computer Networking, Operating System Administration, Package and Software Management, Network Troubleshooting, Version Control, IT Automation, Systems Administration, IT Infrastructure, TCP/IP, Git (Version Control System), Chef (Configuration Management Tool), Network Security, Ruby (Programming Language), File Systems, Microsoft Windows, Computer Hardware, Technical Support, Interviewing Skills, Applicant Tracking Systems
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months
Duke University
Skills you'll gain: Probability, Graphing, Algebra, Bayesian Statistics, Arithmetic, Data Science, Calculus, General Mathematics
Beginner · Course · 1 - 4 Weeks
Ludwig-Maximilians-Universität München (LMU)
Skills you'll gain: Business Strategy, Game Theory, Strategic Thinking, Competitive Analysis, Strategic Partnership, Product Strategy, Strategic Decision-Making, New Product Development, Market Analysis, Innovation
Mixed · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Data Structures, Graph Theory, Algorithms, Program Development, Bioinformatics, Data Storage, Development Testing, Theoretical Computer Science, Computational Thinking, Network Analysis, Test Case, Programming Principles, Computer Programming, Python Programming, C and C++, Java, Rust (Programming Language), Javascript, Software Testing, Debugging
Intermediate · Specialization · 3 - 6 Months

University of California, Santa Cruz
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), Programming Principles, Software Design Patterns, Computer Programming, Algorithms, C (Programming Language), Graph Theory, Debugging, Artificial Intelligence, Data Structures, Game Design, Software Documentation
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Jest (JavaScript Testing Framework), Django (Web Framework), Version Control, Restful API, Responsive Web Design, Cascading Style Sheets (CSS), Unix Commands, HTML and CSS, Git (Version Control System), API Testing, GitHub, Relational Databases, Object Oriented Programming (OOP), Database Management Systems, Bootstrap (Front-End Framework), React.js, Mobile Development, SQL, Database Design, Python Programming
Beginner · Specialization · 3 - 6 Months

University of Pennsylvania
Skills you'll gain: Financial Statements, Operations Management, Operational Efficiency, Financial Statement Analysis, Return On Investment, Accrual Accounting, Human Capital, Process Analysis, Branding, Financial Accounting, Marketing, Process Management, People Management, Strategic Marketing, Capital Budgeting, Financial Reporting, Finance, Peer Review, Project Design, Corporate Finance
Beginner · Specialization · 3 - 6 Months