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.

Johns Hopkins University
Skills you'll gain: AI Security, Cybersecurity, Cyber Attacks, Fraud detection, Email Security, Threat Detection, Jupyter, Authentications, Intrusion Detection and Prevention, Machine Learning Algorithms, Artificial Intelligence, Multi-Factor Authentication, Anomaly Detection, Natural Language Processing, Machine Learning, Supervised Learning
Intermediate · Course · 1 - 4 Weeks

Universidad de Palermo
Skills you'll gain: Student-Centred Learning, Human Learning, Learning Theory, Behavior Management, Psychology, Culture, Applied Behavior Analysis, Education and Training, Learning Strategies, Social Sciences, Sociology, Interpersonal Communications
Beginner · Course · 1 - 4 Weeks

Kennesaw State University
Skills you'll gain: Six Sigma Methodology, Lean Six Sigma, Process Analysis, Analysis, Process Improvement, Project Documentation, Quality Improvement, Customer Analysis, Continuous Quality Improvement (CQI), Project Management, Business Process
Mixed · Course · 1 - 3 Months
University of Colorado Boulder
Skills you'll gain: Numerical Analysis, Applied Mathematics, Mathematical Modeling, Differential Equations, Physics
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Stored Procedure, Database Design, Git (Version Control System), Database Development, MySQL, Databases, Database Application, Data Visualization Software, Version Control, SQL, Tableau Software, Data Modeling, Transaction Processing, Django (Web Framework), Project Management, Application Development, Python Programming
Intermediate · Course · 1 - 4 Weeks

University of Cape Town
Skills you'll gain: Climate Change Adaptation, Water Resources, Water Sustainability, Sustainable Development, Environmental Policy, Water Resource Management, Environmental Science, Environment, Natural Resource Management, Socioeconomics, Vulnerability, Governance
Beginner · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Simulations, Social Sciences, Systems Thinking, Agentic systems, Social Network Analysis, Model Evaluation, Sociology, Economics, Scientific Methods, Computer Programming
Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Bioinformatics, Markov Model, Molecular Biology, Machine Learning Methods, Computational Thinking, Data Mapping, Theoretical Computer Science, Infectious Diseases, Algorithms, Computer Programming Tools, Data Structures
Intermediate · Course · 1 - 3 Months

Nanyang Technological University, Singapore
Skills you'll gain: Systems Thinking, Case Studies, Network Analysis, Mathematical Modeling, Simulations, Systems Engineering, Social Sciences, Applied Mathematics, Sustainable Systems, Policy Analysis, Forecasting, Critical Thinking, Jupyter
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Computational Thinking, File I/O, Data Collection, Simulations, Data Analysis, Microsoft Visual Studio, C (Programming Language), Statistical Analysis, Automation, Program Development, Data Structures, Programming Principles, Algorithms, Computer Programming, Theoretical Computer Science, Data Storage, Descriptive Statistics, Data Visualization Software, Debugging
Beginner · Specialization · 3 - 6 Months

Copenhagen Business School
Skills you'll gain: Sustainable Business, Corporate Sustainability, Stakeholder Engagement, Sustainable Development, Business Modeling, Innovation, Environmental Social And Corporate Governance (ESG), Marketing Communications, Business Strategies, Case Studies, Systems Thinking, Strategic Partnership
Beginner · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Presentations, Verbal Communication Skills, Communication, Non-Verbal Communication, Microsoft PowerPoint, Business Communication, English Language, Interpersonal Communications, Business Leadership, Crisis Management, Organizational Structure, Leadership and Management, Business, Business Management, Global Marketing, Rapport Building, Leadership, Corporate Communications, Grammar, Vocabulary
Mixed · Course · 1 - 4 Weeks