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: 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

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 California, Davis
Skills you'll gain: Search Engine Optimization, Persona Development, Web Analytics and SEO, Keyword Research, Target Audience, Google Analytics, Digital Marketing, Content Strategy, Brand Awareness, Content Creation, User Research, Algorithms, Data Analysis, Business Reporting
Beginner · Course · 1 - 4 Weeks
Stanford University
Skills you'll gain: Algorithms, Graph Theory, Theoretical Computer Science, Computational Thinking, Data Structures, Pseudocode, Operations Research
Intermediate · 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

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, Combinatorics, Data Science, Advanced Mathematics, Mathematical Modeling, Design Strategies
Build toward a degree
Advanced · Specialization · 3 - 6 Months

Atlassian
Skills you'll gain: Jira (Software), Agile Methodology, Scrum (Software Development), Kanban Principles, Agile Project Management, Lean Methodologies, Backlogs, Sprint Planning, Sprint Retrospectives, User Story, Workflow Management, Project Management, Product Requirements, Query Languages, Software Versioning, Continuous Improvement Process
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Threat Hunting, Incident Response, Cyber Threat Intelligence, Penetration Testing, Computer Security Incident Management, Intrusion Detection and Prevention, Threat Modeling, Threat Detection, MITRE ATT&CK Framework, Cryptography, Security Testing, Incident Management, Application Security, Encryption, Security Management, Cybersecurity, Vulnerability Scanning, Vulnerability Assessments, Open Web Application Security Project (OWASP), Security Information and Event Management (SIEM)
Beginner · Specialization · 3 - 6 Months

Princeton University
Skills you'll gain: Combinatorics, Algorithms, Theoretical Computer Science, Mathematical Theory & Analysis, Graph Theory, Data Structures, Advanced Mathematics, Mathematical Modeling, Probability
Advanced · Course · 1 - 3 Months

Skills you'll gain: Market Research, Market Analysis, Business Research, Research Reports, Market Intelligence, Competitive Analysis, Quantitative Research, Analytical Skills, Case Studies, Report Writing, Analysis, Strategic Decision-Making, Business Strategy, Business Acumen
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Photo Editing, Photography, Storytelling, Photo/Video Production and Technology, Geospatial Information and Technology, Geospatial Mapping, Image Quality, Post-Production, Geographic Information Systems, Global Positioning Systems, Planning, Research, Adobe Creative Cloud, Creative Thinking, Creativity, Design Elements And Principles, Critical Thinking, Data Import/Export, Color Theory
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