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.

Rice University
Skills you'll gain: Basic Electrical Systems, Electrical Engineering, electromagnetics, Physics, Engineering Analysis, Engineering Calculations, Mathematical Modeling, Problem Solving, Applied Mathematics, Advanced Mathematics, Electronic Components, Mathematical Theory & Analysis, Calculus, Differential Equations, Integral Calculus, Trigonometry, Derivatives
Intermediate · Course · 1 - 4 Weeks

The Hong Kong University of Science and Technology
Skills you'll gain: Social Sciences, Big Data, Sociology, Demography, Socioeconomics, Anthropology, Economics, Data Analysis, Analytics, Cultural Diversity, World History, Quantitative Research
Mixed · Course · 1 - 4 Weeks

Fundação Instituto de Administração
Skills you'll gain: Quality Improvement, Quality Management, Administration, Business Management, Business Administration, Organizational Effectiveness, Leadership and Management, Operational Efficiency, Organizational Structure, Production Management, Systems Thinking, Lean Manufacturing, Knowledge Transfer
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Security Management, Cyber Governance, IT Management, Cybersecurity, Cyber Security Strategy, Cyber Risk, Cyber Security Policies, Key Performance Indicators (KPIs), Leadership and Management, Technical Communication, Internal Communications, Leadership, Program Management, Risk Management, Communication, Stakeholder Communications
Beginner · Course · 1 - 4 Weeks

Yonsei University
Skills you'll gain: Disaster Recovery, Mitigation, Risk Management Framework, Emergency Response, Geospatial Information and Technology, Policty Analysis, Research, and Development, Public Policies, Environmental Policy, Systems Thinking, Case Studies, World History
Intermediate · Course · 1 - 3 Months

Yonsei University
Skills you'll gain: Financial Statements, Financial Statement Analysis, Business Valuation, Income Statement, Entrepreneurial Finance, Balance Sheet, Cash Flows, Financial Analysis, Financial Modeling, Case Studies, Revenue Forecasting
Beginner · Course · 1 - 3 Months

GRAMMY GO
Skills you'll gain: Music Theory, Musical Composition, Music, Instrumental Music, Media Production, Music Performance, Post-Production, Creativity, System Configuration
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Network Analysis, R Programming, Statistical Analysis, Regression Analysis, Statistical Modeling, Bayesian Network, Statistical Hypothesis Testing, Statistical Programming, Data Analysis, R (Software), Probability, Probability Distribution, Applied Machine Learning, Probability & Statistics, Statistical Methods, Social Network Analysis, Applied Mathematics, Simulations, Data Science, Markov Model
Intermediate · Specialization · 3 - 6 Months

University of Amsterdam
Skills you'll gain: Innovation, Systems Thinking, Storytelling, Social Impact, Critical Thinking, Policy Analysis, Social Sciences, Cultural Diversity, Economics
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Git (Version Control System), GitHub, Version Control, CI/CD, Azure DevOps, Infrastructure as Code (IaC), Microsoft Copilot, Bitbucket, Continuous Integration, Microsoft Azure, DevOps, Docker (Software), GitLab, Software Development Tools, Application Deployment, ChatGPT, Software Installation, Continuous Deployment, Amazon Web Services
Intermediate · Specialization · 3 - 6 Months

Northeastern University
Skills you'll gain: Database Design, Database Theory, MongoDB, Database Development, Database Management Systems, Databases, Data Modeling, Database Architecture and Administration, NoSQL, Relational Databases, Unified Modeling Language, SQL, Data Integrity, Performance Tuning, Diagram Design, Software Architecture, Conceptual Design
Mixed · Course · 1 - 4 Weeks

Tecnológico de Monterrey
Skills you'll gain: Social Media, Social Media Marketing, Social Media Strategy, Key Performance Indicators (KPIs), Social Network Analysis, Facebook, Pinterest, LinkedIn, Instagram, TikTok, Dashboard, Analytics, Target Audience
Beginner · Course · 1 - 4 Weeks