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 Virginia
Skills you'll gain: Agentic systems, Economics, Artificial Intelligence, Economic Development, Socioeconomics, Public Policies, Automation, Labor Relations, Emerging Technologies, Theoretical Computer Science, Market Dynamics, Growth Strategies, Policy Analysis, Innovation
Advanced · Course · 1 - 3 Months

Xi'an Jiaotong University
Skills you'll gain: Liberal Arts, Ancient History, Culture, Cultural Diversity, Research, Systems Thinking, Human Learning
Mixed · Course · 1 - 3 Months

California Institute of the Arts
Skills you'll gain: Intellectual Property, Business Planning, Competitive Analysis, Business Risk Management, Tax Preparation, Business Process Automation, Budget Management, Business Strategy, Contract Management, Peer Review, Process Improvement, Financial Analysis, Financial Forecasting, Small Business Accounting, Client Services, Financial Modeling, Market Analysis, Entrepreneurship, Marketing, Leadership and Management
Beginner · Specialization · 3 - 6 Months

EDHEC Business School
Skills you'll gain: Environmental Social And Corporate Governance (ESG), Mergers & Acquisitions, Capital Markets, Project Finance, Investment Banking, Financial Services, Corporate Finance, Loans, Asset Management, Sustainable Development, Derivatives
Intermediate · Course · 1 - 3 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Ethical Standards And Conduct, Business Ethics, Social Network Analysis, Public Administration, Accountability, Policy Analysis, Law, Regulation, and Compliance, Analysis, Social Sciences, Systems Thinking, Case Studies, Regulation and Legal Compliance, Governance, Social Justice, Disciplinary Procedures, Legal Proceedings, Compliance Training, Political Sciences, Performance Measurement
Beginner · Course · 1 - 3 Months

Skills you'll gain: Color Theory, User Interface and User Experience (UI/UX) Design, Logo Design, Typography, Interaction Design, Figma (Design Software), Adobe Illustrator, Wireframing, Marketing Materials, Marketing Design, Layout Design, Usability, Web Content Accessibility Guidelines, Graphic Design, User Centered Design, Photo Editing, Peer Review, Adobe Firefly, Game Design, Adobe Photoshop
Beginner · Professional Certificate · 3 - 6 Months

Arizona State University
Skills you'll gain: Semiconductors, Electronic Components, Materials science, Electrical Engineering, Electronics Engineering, Mechanical Engineering, Electronics, Failure Analysis, Thermal Management, Chemical Engineering, Manufacturing Processes, Process Control, Structural Analysis, Chemistry, Engineering Calculations
Intermediate · Specialization · 3 - 6 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

Rice University
Skills you'll gain: Environmental Monitoring, Water Quality, Hydrology, Environmental Engineering, Water Resources, Laboratory Testing, Environmental Science, Mathematical Modeling, Microbiology, Chemical Engineering, Chemistry
Advanced · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Growth Mindedness, Technical Communication, Adaptability, Algorithms, Overcoming Obstacles, Software Engineering, Verbal Communication Skills, Interpersonal Communications, Communication, Problem Solving, Self-Awareness, Collaboration, Complex Problem Solving, Data Structures
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Child Development, Advocacy, Research, Research Methodologies, Social Sciences, Data Collection, Social Network Analysis, Anthropology, Human Development, Nutrition and Diet, Environmental Issue, Biology
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Loans, Lending and Underwriting, FinTech, Payment Systems, Key Management, Cryptography, Digital Assets, Market Liquidity, Financial Trading, Transaction Processing, Public Key Infrastructure, Encryption, Asset Protection, Governance
Intermediate · Course · 1 - 4 Weeks