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 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, Programming Principles, File Systems, Computer Programming, Python Programming, C and C++, Java, Rust (Programming Language), Javascript, Software Testing, Debugging
Intermediate · Specialization · 3 - 6 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, Professional Development
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, Data Analysis, Descriptive Statistics
Beginner · Course · 1 - 4 Weeks
Ludwig-Maximilians-Universität München (LMU)
Skills you'll gain: Mergers & Acquisitions, Customer Retention, Business Research, Business Strategy, Organizational Structure, Organizational Strategy, Peer Review, Game Theory, Strategic Thinking, Competitive Analysis, Strategic Partnership, Product Strategy, Report Writing, Business Consulting, Growth Strategies, Organizational Effectiveness, Strategic Decision-Making, Management Consulting, Organizational Change, Analysis
Intermediate · Specialization · 3 - 6 Months

The Museum of Modern Art
Skills you'll gain: Art History, Design Elements And Principles, Aesthetics, Color Theory
Beginner · Course · 1 - 3 Months

California Institute of the Arts
Skills you'll gain: Logo Design, Style Guides, Branding, Typography, Graphic and Visual Design, Brainstorming, Design Research, Adobe InDesign, Creativity, Adobe Photoshop, Color Theory, Design Elements And Principles
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Typography, Logo Design, Responsible AI, Digital Design, Creative Design, Visual Design, Graphic Design, User Interface and User Experience (UI/UX) Design, Color Theory, Content Creation, Generative AI Agents
Beginner · Course · 1 - 4 Weeks

Stanford University
Skills you'll gain: Social Network Analysis, Network Analysis, Sociology, Socioeconomics, Economics, Policy, and Social Studies, Game Theory, Mathematical Modeling, Statistical Modeling, Markov Model, Bayesian Statistics, Probability
Advanced · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Matplotlib, Network Analysis, Social Network Analysis, Feature Engineering, Data Visualization, Pandas (Python Package), Data Visualization Software, Interactive Data Visualization, Scientific Visualization, Applied Machine Learning, Supervised Learning, Text Mining, Visualization (Computer Graphics), Statistical Visualization, Data Manipulation, NumPy, Graph Theory, Natural Language Processing, Python Programming, Data Processing
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: User Experience Design, User Interface and User Experience (UI/UX) Design, User Experience, Design Research, Linux Commands, User Centered Design, Debugging, User Interface (UI), UI Components, Software Versioning, Software Visualization, Web Content Accessibility Guidelines, Pseudocode, JavaScript Frameworks, Javascript, Web Applications, Cascading Style Sheets (CSS), Unit Testing, Application Development, API Design
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Cloud Infrastructure, Identity and Access Management, Kubernetes, Google Cloud Platform, Cloud Management, Prompt Engineering, Cloud Storage, Containerization, Infrastructure As A Service (IaaS), Cloud-Native Computing, Terraform, Cloud Applications, Cloud Computing Architecture, Cloud Services, Load Balancing, Application Deployment, Infrastructure as Code (IaC), Virtual Machines, Data Storage Technologies, Cloud Computing
Intermediate · Professional Certificate · 3 - 6 Months

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