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: Control Systems, Mathematical Modeling, Engineering Analysis, Differential Equations, Systems Analysis, Electrical Systems, Mechanics, Systems Thinking, Applied Mathematics, Performance Testing, Basic Electrical Systems
Build toward a degree
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: GitHub, Unix, Git (Version Control System), Unix Commands, Version Control, Bash (Scripting Language), Ubuntu, Command-Line Interface, Cloud Computing, Shell Script, Linux, Mac OS, Scripting, Scripting Languages, Programming Principles, File Management
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Community Outreach, Social Justice, Discussion Facilitation, Diversity Awareness, Overcoming Obstacles, Advocacy, Community Development, Interviewing Skills, Empowerment, Cultural Sensitivity, Action Oriented, Interpersonal Communications, Persistence, Sociology, Diversity Equity and Inclusion Initiatives, Self-Awareness, Intercultural Competence, Cultural Diversity, Storytelling, Planning
Beginner · Specialization · 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

University of California, Irvine
Skills you'll gain: Search Engine Marketing, Business Strategy, Keyword Research, Digital Marketing, Organizational Leadership, Online Advertising, Search Engine Optimization, Business Planning, Content Marketing, Accountability, Cash Flow Forecasting, Business Management, Leadership and Management, Management Training And Development, Social Media Strategy, Social Media, Team Leadership, Strategic Planning, Banking, Storytelling
Beginner · Specialization · 1 - 3 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

Tecnológico de Monterrey
Skills you'll gain: Negotiation, Conflict Management, Assertiveness, Communication, Interpersonal Communications, Active Listening, Empathy, Performance Review, Constructive Feedback, Organizational Leadership, Relationship Building, Leadership and Management, Team Leadership, Leadership, Emotional Intelligence, Strategic Communication, Influencing, Business Leadership, Communication Strategies, Strategic Planning
Advanced · Specialization · 1 - 3 Months

Illinois Tech
Skills you'll gain: Process Improvement, Process Management, Global Marketing, Business Process, Business Process Management, Financial Statement Analysis, Financial Statements, Brand Management, Leadership and Management, Financial Analysis, Marketing, People Management, Team Leadership, Strategic Marketing, Organizational Change, Leadership, Inventory Accounting, Business Strategy, Financial Management, Data Analysis
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Peking University
Skills you'll gain: Data Structures, Computational Thinking, Graph Theory, Theoretical Computer Science, Programming Principles, Algorithms, Computer Programming, Data Storage, C (Programming Language), C++ (Programming Language)
Mixed · Course · 1 - 3 Months

Universidad Nacional Autónoma de México
Skills you'll gain: NoSQL, Database Systems, MongoDB, Database Management Systems, Databases, Database Design, Relational Databases, Query Languages, Apache Cassandra, Data Storage Technologies, Scalability, Graph Theory, Unstructured Data, Maintainability
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Growth Mindedness, Technical Communication, Adaptability, Algorithms, Overcoming Obstacles, Software Engineering, Verbal Communication Skills, Interpersonal Communications, Communication, Problem Solving, Self-Awareness, Collaboration, Complex Problem Solving, Data Structures
Intermediate · Course · 1 - 3 Months