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.

Johns Hopkins University
Skills you'll gain: Social Network Analysis, Network Analysis, Graph Theory, Social Sciences, Statistical Analysis, R Programming, Sociology, Statistical Modeling, Statistical Hypothesis Testing
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Tree Maps, Network Analysis, Computational Thinking, Python Programming
Build toward a degree
Advanced · Course · 1 - 4 Weeks

University of Geneva
Skills you'll gain: Biochemistry, Biochemical Assays, Fluoroscopy, Molecular Biology, Cell Biology, Chemistry, Biotechnology, Laboratory Research, Scientific Visualization, Biology, Specimen Labeling
Intermediate · Course · 1 - 3 Months
Duke University
Skills you'll gain: Pandas (Python Package), Bash (Scripting Language), Version Control, Jupyter, Linux Commands, Git (Version Control System), Shell Script, Linux, Web Scraping, Linux Administration, Data Manipulation, MySQL, Microservices, AWS SageMaker, SQL, JSON, Cloud Engineering, Python Programming, Big Data, Data Science
Beginner · Specialization · 3 - 6 Months

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

California Institute of the Arts
Skills you'll gain: Graphic Design, Graphic and Visual Design, Typography, Graphic and Visual Design Software, Adobe Creative Cloud, Design Elements And Principles, Adobe Photoshop, Adobe Illustrator, Design Software, Color Theory, Image Quality, Creativity
Beginner · Course · 1 - 4 Weeks
University of Pennsylvania
Skills you'll gain: Managed Care, Health Systems, Health Care Administration, Health Care Procedure and Regulation, Health Care, Value-Based Care, Medicaid, Insurance, Health Policy, Medicare, Economics, Behavioral Economics, Supply And Demand, Market Dynamics, Long Term Care, Payment Systems, Hospice
Mixed · Course · 1 - 4 Weeks

Berklee
Skills you'll gain: Music Performance, Post-Production, Music, Media Production, Musical Composition, Music Theory, Editing
Beginner · Course · 1 - 4 Weeks

The University of Tokyo
Skills you'll gain: Higher Education, Cultural Sensitivity, Intercultural Competence, Cultural Diversity, Language Learning, Research
Beginner · Course · 1 - 4 Weeks

Tecnológico de Monterrey
Skills you'll gain: Social Media Marketing, Social Media, Social Media Strategy, Digital Media Strategy, Marketing, Social Network Analysis, Global Marketing, Content Performance Analysis, Customer Engagement
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Data Visualization, Interactive Data Visualization, Data Presentation, Infographics, Data Visualization Software, Data Storytelling, Plotly, Matplotlib, Journalism, Graphing, Data Literacy, Color Theory, Data Manipulation, Design Elements And Principles, Data Analysis
Beginner · Course · 1 - 3 Months

Institute for the Future
Skills you'll gain: Forecasting, Innovation, Proactivity, Strategic Thinking, Creative Thinking, Optimism, Systems Thinking, Trend Analysis, Creativity, Professional Development, Leadership, Collaboration, Analysis, Emerging Technologies
Beginner · Course · 1 - 4 Weeks