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.

Skills you'll gain: Canva (Software), Design, Digital Design, Product Design, Graphic and Visual Design Software, Creative Design, Color Theory, Graphic Design, Intellectual Property, E-Commerce, Direct Selling, Digital Content, Digital Assets, Marketing, Marketing Materials
Advanced · Guided Project · Less Than 2 Hours

University of California San Diego
Skills you'll gain: Combinatorics, Theoretical Computer Science, Algorithms, Graph Theory, Computational Thinking, Data-oriented programming, Operations Research, Python Programming, Mathematical Modeling
Beginner · Course · 1 - 4 Weeks

Berklee
Skills you'll gain: Music Theory, Music, Musical Composition, File Management, Instrumental Music, Music Performance, Self-Awareness, Verbal Communication Skills, Performing Arts, Automation, Editing, Technical Support, Creativity
Beginner · Specialization · 3 - 6 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

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

Google Cloud
Skills you'll gain: Google Docs, Gmail, Google Sheets, Google Workspace, Presentations, Calendar Management, Spreadsheet Software, File Management, Excel Formulas, Email Security, Data Visualization, Productivity Software, Collaborative Software, Data Validation, Document Management, Setting Appointments, Meeting Facilitation, Sales Presentations, Data Analysis Expressions (DAX), Version Control
Beginner · Specialization · 3 - 6 Months

University of Minnesota
Skills you'll gain: Open Web Application Security Project (OWASP), Cucumber (Software), Software Testing, Selenium (Software), Gherkin (Scripting Language), JUnit, Verification And Validation, Test Automation, Unit Testing, Security Testing, Regression Testing, Test Case, Testability, Behavior-Driven Development, Code Coverage, Performance Testing, Development Testing, Test Planning, Acceptance Testing, Software Quality Assurance
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: 3D Modeling, 3D Assets, Animation and Game Design, Computer Graphics, Visualization (Computer Graphics), Autodesk, Computer Graphic Techniques, Virtual Environment, Adobe Photoshop, Photo Editing, Color Matching, Image Quality, Color Theory
Beginner · Specialization · 3 - 6 Months

National Taiwan University
Skills you'll gain: Report Writing, Operations Research, Applied Mathematics, Mathematical Modeling, Algorithms, Business Modeling, Engineering Calculations, Project Design, Data Visualization, Presentations, Complex Problem Solving, Decision Making, Business Analytics
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Musical Composition, Music Theory, Music, Music Performance, Instrumental Music, Classical Music
Intermediate · 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

Skills you'll gain: Software Development Life Cycle, Software Architecture, Software Design, Software Development Methodologies, Software Design Patterns, Development Environment, Unified Modeling Language, Software Engineering, Web Applications, Software Development Tools, Software Development, Application Deployment, Programming Principles, Front-End Web Development, Back-End Web Development, Python Programming
Beginner · Course · 1 - 3 Months