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.

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

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

IIMA - IIM Ahmedabad
Skills you'll gain: Leadership, Organizational Leadership, Team Leadership, Change Management, Leadership and Management, Business Leadership, Business Ethics, Self-Awareness, Culture Transformation, Personal Development, Decision Making, Emotional Intelligence, Influencing, Empowerment, Communication, Relationship Building, Mindfulness
Beginner · 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

Skills you'll gain: 3D Modeling, Post-Production, Game Design, Video Game Development, Video Production, Augmented and Virtual Reality (AR/VR), File Management, Functional Design, Design, Simulations, Aesthetics, Design Elements And Principles, Color Theory
Intermediate · Specialization · 3 - 6 Months

Berklee
Skills you'll gain: Music Theory, Music, Musical Composition, Education Software and Technology, Peer Review, Instrumental Music, Teaching, Music Performance, Oral Expression, World Music, Storytelling, Classroom Management, Media Production, Cultural Responsiveness, Writing, Creativity, Empowerment, Collaboration, Technology Solutions
Intermediate · Specialization · 3 - 6 Months

Stanford University
Skills you'll gain: Data Structures, Graph Theory, Algorithms, Social Network Analysis, Network Analysis, Theoretical Computer Science, Network Routing, Computational Logic
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Education Software and Technology, Learning Theory, Instructional Design, Technology Solutions, Disabilities, Human Computer Interaction, Technology Strategies, Emerging Technologies, Innovation, Gerontology
Mixed · Course · 1 - 3 Months

University of Toronto
Skills you'll gain: Meeting Facilitation, Presentations, Persuasive Communication, Communication, Influencing, Verbal Communication Skills, Collaboration, Team Building, Interpersonal Communications, Business Communication, Virtual Teams, Public Speaking, Professional Development, Non-Verbal Communication, Strategic Communication, Empathy, Active Listening, Negotiation
Beginner · Course · 1 - 4 Weeks

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Social Media, Social Media Strategy, Social Media Marketing, Social Media Management, Professional Networking, LinkedIn, Ethical Standards And Conduct, Facebook, Trustworthiness, Instagram, Digital Media Strategy, Social Network Analysis, Professional Development, Safety and Security, Personally Identifiable Information, Digital Marketing, Cybersecurity, Content Creation, Digital Communications, Communication
Beginner · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Customer Analysis, Data-Driven Decision-Making, Descriptive Analytics, Marketing Analytics, Predictive Analytics, Customer Insights, Business Analytics, Analytics, Consumer Behaviour, Process Optimization, Data Collection, Regression Analysis, Market Research
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Infographics, Graphic Design, Graphic and Visual Design, Graphic and Visual Design Software, Design, Visual Design, Graphics Software, Typography, Design Software, Design Reviews, Adobe Creative Cloud, Adobe Photoshop, Design Elements And Principles, Peer Review, Color Theory, Creativity
Beginner · Course · 1 - 4 Weeks