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: Adobe Photoshop, Photo Editing, Graphic and Visual Design, Graphic Design, Creative Design, Typography, Color Theory
Intermediate · Course · 1 - 4 Weeks

University of Pittsburgh
Skills you'll gain: Data Storytelling, Data Presentation, Interactive Data Visualization, Data Visualization Software, Data Visualization, Network Analysis, Tableau Software, Statistical Visualization, Network Model, Dashboard, Time Series Analysis and Forecasting, Matplotlib, Data Analysis, Seaborn, Graph Theory, Pandas (Python Package), Python Programming
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Algorithms, Bayesian Statistics, Theoretical Computer Science, Pseudocode, Computational Thinking, Data Structures, Graph Theory, Network Analysis, Probability, Probability & Statistics
Mixed · Course · 1 - 3 Months

Skills you'll gain: Software Architecture, Code Review, Unit Testing, Software Design, LLM Application, Application Design, Prompt Engineering, Python Programming, Version Control, Java Programming
Intermediate · Course · 1 - 3 Months
University of Glasgow
Skills you'll gain: Application Deployment, Application Development, Code Review, Software Development, Prototyping, Web Applications, JavaScript Frameworks, Software Engineering, Javascript, Computational Thinking, Version Control, Programming Principles, Program Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux Servers, Cloud Infrastructure, Cloud Computing, Linux, Ubuntu, Operating System Administration, Infrastructure As A Service (IaaS), Scalability, Cloud Security, Servers, Web Servers, Apache, Firewall, PHP (Scripting Language)
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Sustainable Development, Sustainable Business, Corporate Sustainability, Systems Thinking, Professional Development, Leadership, Strategic Leadership, Change Management, Professional Networking, Self-Awareness
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Team Leadership, Virtual Teams, Delegation Skills, Leadership and Management, Employee Training, Professional Development, Leadership, Project Management, Key Performance Indicators (KPIs), Business Metrics
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Video Editing, Adobe Premiere, Post-Production, Video Production, Editing, Color Theory, Color Matching, Storytelling
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Unit Testing, Software Quality Assurance, Integrated Development Environments, Software Testing, Quality Assurance, Java, Software Development Tools, Debugging, Performance Testing
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Photo Editing, Photography, Design, Design Elements And Principles, Graphic and Visual Design, Content Creation, Photo/Video Production and Technology, Typography, Color Theory, Storytelling
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Accident Prevention, Health Equity, Safety Standards, Civil Engineering, Grant Writing, Health Disparities, Systems Thinking, Community Outreach, Public Health, Community Development, Cultural Sensitivity
Mixed · Course · 1 - 4 Weeks