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.

Meta
Skills you'll gain: Version Control, Unix Commands, Git (Version Control System), GitHub, Linux Commands, Software Versioning, Command-Line Interface, Linux, Collaborative Software, File Management, Software Development Tools, Software Development, Web Development
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Event Marketing, Marketing Design, Canva (Software), Marketing Materials, A/B Testing, Promotional Materials, Event Management, Logo Design, Email Marketing, Cross-Channel Marketing, Social Media Campaigns, Branding, Drive Engagement, Experience Design, Graphic and Visual Design, Typography, Design Elements And Principles, Color Theory
Beginner · Course · 1 - 4 Weeks

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

University of California, Santa Cruz
Skills you'll gain: C++ (Programming Language), Go (Programming Language), File I/O, Data Structures, Object Oriented Programming (OOP), Software Design Patterns, Debugging, Computer Programming, Unit Testing, Programming Principles, Algorithms, C (Programming Language), Integrated Development Environments, Graph Theory, Software Testing, Artificial Intelligence, Integration Testing, Software Design, System Design and Implementation, Game Design
Intermediate · Specialization · 3 - 6 Months
Coursera
Skills you'll gain: electromagnetics, Electrical Engineering, Electronics Engineering, Electronics, Verification And Validation, Communication Systems, Wireless Networks, Digital Communications, Telecommunications, Technical Design, Prototyping, Engineering Design Process, Simulation and Simulation Software, Simulations, Workflow Management, Radiation Protection, Network Troubleshooting, Business Workflow Analysis
Intermediate · Course · 1 - 4 Weeks

University of Toronto
Skills you'll gain: Computer Vision, Convolutional Neural Networks, Image Analysis, Control Systems, Robotics, Embedded Software, Automation, Deep Learning, Software Architecture, Simulations, Safety Assurance, Traffic Flow Optimization, Artificial Neural Networks, Global Positioning Systems, Machine Controls, Hardware Architecture, Systems Architecture, Network Routing, Estimation, Machine Learning Methods
Advanced · Specialization · 3 - 6 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Statistical Inference, Pandas (Python Package), Probability & Statistics, Risk Analysis, Financial Trading, Financial Data, Data Manipulation, Statistical Analysis, Regression Analysis, Financial Analysis, Jupyter, Financial Modeling, Python Programming, Model Evaluation, Data Visualization, Data Import/Export
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Adobe Firefly, Adobe Photoshop, Photo Editing, Storytelling, Adobe Creative Cloud, Generative AI Agents, Data Import/Export, Image Quality, Color Theory, Generative AI, Photography, Graphic and Visual Design, Editing, Creative Design, Design Elements And Principles, Design Software, Design, Creative Thinking, Creativity, Portfolio Management
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Musical Composition, Music, Music Theory, Peer Review, Music Performance, Post-Production, Storytelling, Media Production, Editing, Performing Arts, Organizational Skills, Writing, Technology Solutions
Beginner · Specialization · 3 - 6 Months
Rice University
Skills you'll gain: Portfolio Management, Portfolio Risk, Financial Market, Investments, Securities (Finance), Financial Systems, Securities Trading, Asset Management, Behavioral Economics, Capital Markets, Investment Management, Equities, Performance Measurement, Finance, Financial Services, Performance Analysis, Risk Management, Return On Investment, Market Liquidity, Derivatives
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Canva (Software), Brand Strategy, Logo Design, Branding, Style Guides, Brand Awareness, Graphic and Visual Design, Marketing Materials, Typography, Design Elements And Principles, Color Theory, Asset Management
Beginner · Course · 1 - 4 Weeks

Columbia University
Skills you'll gain: International Finance, Derivatives, Financial Systems, Balance Sheet, Financial Market, Payment Systems, Banking, Capital Markets, Economics, Market Liquidity, Financial Regulation, Finance, Market Dynamics
Mixed · Course · 3 - 6 Months