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, Irvine
Skills you'll gain: Goal Setting, Smart Goals, Professional Networking, Business Management, Professional Development, Staff Management, Leadership and Management, Operations Management, People Management, Business Administration, Planning, Customer Relationship Management, Organizational Leadership, Organizational Strategy, Leadership, Change Management
Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Algorithms, Data Structures, Graph Theory, Operations Research, Theoretical Computer Science, Public Key Cryptography Standards (PKCS), Computer Programming, Computational Thinking, Cryptography, Programming Principles, Computer Science, Applied Mathematics, Tree Maps, Encryption, Python Programming, Mathematical Modeling, Data Science, Advanced Mathematics, Linear Algebra, Design Strategies
Build toward a degree
Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Musical Composition, Music, Music Theory, Music Performance, Creativity
Intermediate · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Cooking, Food and Beverage, Color Theory, Scientific Methods, Nutrition and Diet, Biochemistry, Chemistry, Physiology, Thermal Management, Psychology
Beginner · Course · 1 - 3 Months
Georgia Institute of Technology
Skills you'll gain: Failure Analysis, Mechanical Design, Structural Analysis, Materials science, Engineering Analysis, Engineering Design Process, Mechanics, Biomedical Engineering, Problem Solving
Intermediate · Course · 1 - 3 Months

Universitat Politècnica de València
Skills you'll gain: Calculus, Algebra, Derivatives, Applied Mathematics, Mathematical Theory & Analysis, Trigonometry, Geometry, Graphing
Beginner · Course · 1 - 3 Months

The University of Sydney
Skills you'll gain: Mental Health, Stress Management, Mindfulness, Psychiatry, Positivity, Optimism, Resilience, Behavioral Health, Mental Health Therapies, Psychotherapy, Personal Development, Mental and Behavioral Health, Creativity, Cognitive Behavioral Therapy, Substance Abuse, Empowerment, Relationship Building, Exercise Therapy
Mixed · Course · 1 - 3 Months

Duke University
Skills you'll gain: Color Theory, World Music, Disabilities, Art History, Music History, Social Justice, Performing Arts, Community Organizing, Liberal Arts, Interactive Learning, Peer Review, Musical Composition, Cultural Diversity, Aesthetics, Music, Music Theory, Sociology, Creativity, Critical Thinking, Communication
Beginner · Specialization · 3 - 6 Months

Arizona State University
Mixed · Course · 1 - 3 Months

Skills you'll gain: Risk Management, Leadership Development, Crisis Management, Stakeholder Management, Interviewing Skills, Personal Development, Leadership, Strategic Partnership, Professional Networking, Leadership and Management, Branding, Business Leadership, Cybersecurity, Strategic Leadership, Business Planning, IT Management, Strategic Thinking, Communication Planning
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Graph Theory, Data Structures, Unstructured Data, Network Routing, Algorithms
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Computer Graphics, 3D Assets, Visualization (Computer Graphics), Computer Graphic Techniques, C++ (Programming Language), Video Game Development, Image Quality, Applied Mathematics, Algebra
Mixed · Course · 1 - 4 Weeks