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.

University of Rochester
Skills you'll gain: Music History, Music, Music Theory, Musical Composition, Instrumental Music, Music Performance, Creativity
Beginner · Course · 1 - 3 Months

New York University
Skills you'll gain: Supervised Learning, Model Evaluation, Applied Machine Learning, Machine Learning, Statistical Methods, Artificial Neural Networks, Predictive Modeling, Scikit Learn (Machine Learning Library), Regression Analysis, Deep Learning, Finance, Financial Market, Tensorflow, Logistic Regression, Jupyter, Reinforcement Learning
Intermediate · Course · 1 - 4 Weeks

Lund University
Skills you'll gain: Labor Law, Arbitration, Environmental Laws, Case Law, Legal Writing, Legal Research, Labor Relations, Tax, Tax Laws, Regulation and Legal Compliance, Commercial Laws, Compliance Management, Business, Contract Management, Governance
Beginner · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: FinTech, Financial Services, Banking, Financial Regulation, Mobile Banking, Emerging Technologies, Technology Strategies, Payment Systems, Blockchain, Business Technologies, Consumer Lending, Entrepreneurship, Big Data, Market Trend, Innovation, Strategic Partnership
Beginner · Course · 1 - 4 Weeks

University of Manchester
Skills you'll gain: Sustainable Business, Corporate Sustainability, Business Ethics, Environmental Social And Corporate Governance (ESG), Sustainable Development, Intercultural Competence, Ethical Standards And Conduct, Team Oriented, Decision Making, Cultural Diversity, Systems Thinking, Stakeholder Management
Mixed · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Application Specific Integrated Circuits, Hardware Design, Computer-Aided Design, Systems Design, Computer Architecture, Network Routing, Computational Logic, Electrical Engineering, Data Structures, Algorithms, Graph Theory, Mathematical Modeling, Calculus
Intermediate · Course · 1 - 3 Months
Illinois Tech
Skills you'll gain: Market Dynamics, Supply And Demand, Game Theory, Product Lifecycle Management, Business Strategy, Competitive Analysis, Business Economics, Innovation, Strategic Thinking, Cost Reduction, Economics, Market Trend, Strategic Decision-Making, Price Negotiation, Global Marketing, Market Analysis, Organizational Strategy, Strategic Planning, Team Leadership, Adaptability
Build toward a degree
Beginner · Specialization · 3 - 6 Months

University of Geneva
Skills you'll gain: Sustainable Development, Geographic Information Systems, Environment, Environmental Resource Management, Natural Resource Management, Spatial Analysis, Sustainability Standards, Environmental Science, Environmental Policy, Hydrology, Economics, Governance, Stakeholder Engagement, Case Studies
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Musical Composition, Music, Music Theory, Electronic Media, Design Software, Peer Review, Creativity, Patch Management, System Requirements
Intermediate · Course · 1 - 4 Weeks
Google Cloud
Skills you'll gain: Google Docs, Collaborative Software, Document Management, Data Sharing, File Management, Version Control, Editing, Cloud Storage
Beginner · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Bankruptcies, Securities (Finance), Commercial Laws, Loans, Banking, Financial Regulations, Regulation and Legal Compliance, Business, Financial Regulation, Organizational Structure, Governance, Mergers & Acquisitions
Build toward a degree
Intermediate · Course · 1 - 3 Months

Akamai Technologies, Inc.
Skills you'll gain: Endpoint Security, Database Systems, Computer Security Incident Management, Security Management, Ubuntu, Routing Protocols, Database Design, Application Development, Network Architecture, Linux Commands, TCP/IP, Operating Systems, Database Theory, Web Design and Development, Cascading Style Sheets (CSS), Web Development, Data Structures, Python Programming, Data Analysis, Software Development
Beginner · Professional Certificate · 3 - 6 Months