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 Florida
Skills you'll gain: Land Management, Climate Change Mitigation, Sustainable Development, Sustainable Systems, Environment and Resource Management, Water Resources, Sustainability Standards, Climate Change Adaptation, Water Resource Management, Environment, Natural Resource Management, Plant Operations and Management, Systems Thinking, Environmental Science, General Science and Research, Spatial Analysis, Socioeconomics, Research, Research Methodologies, Biology
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Statistical Inference, Statistical Modeling, Regression Analysis, Data Ethics, Statistical Methods, Data Science, R Programming, Data Modeling, Statistical Analysis, Predictive Modeling, Mathematical Modeling, Probability & Statistics, Model Evaluation, Feature Engineering
Build toward a degree
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Statistical Methods, Statistical Analysis, Probability & Statistics, Data Ethics, Statistical Inference, Quantitative Research, Sampling (Statistics), Probability Distribution
Build toward a degree
Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: Game Theory, Social Network Analysis, Graph Theory, Network Analysis, Network Model, Social Sciences, Web Analytics and SEO, Computational Thinking, Information Technology, Economics, Market Dynamics, Sociology, Probability
Mixed · Course · 3 - 6 Months

28DIGITAL
Skills you'll gain: Algorithms, Graph Theory, Computational Thinking, Applied Mathematics, Theoretical Computer Science, Operations Research, Linear Algebra
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Feature Engineering, Exploratory Data Analysis, Pandas (Python Package), Scikit Learn (Machine Learning Library), Data Manipulation, NumPy, Classification Algorithms, Data Preprocessing, Data Analysis, Python Programming, Regression Analysis, Predictive Modeling, Machine Learning Algorithms, Machine Learning, Data Science, Statistical Hypothesis Testing, Supervised Learning, Statistical Methods, Data Structures
Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Occupational Health, Public Health, Environmental Laws, Environmental Regulations, Health Systems, Environmental Policy, Systems Thinking, Occupational Safety and Health Administration (OSHA), Environmental Science, Epidemiology, Environmental Issue, Environmental Monitoring, Health Policy, Personal protective equipment, Risk Analysis
Beginner · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Teaching, Systems Thinking, Diversity Awareness, Adaptability, Instructional Design, Digital pedagogy, Constructive Feedback, Higher Education, Innovation, Collaboration
Intermediate · Course · 1 - 4 Weeks

Shanghai Jiao Tong University
Skills you'll gain: Immunology, Exercise Science, Physical Therapy, Public Health and Disease Prevention, Research, Cultural Responsiveness, Mindfulness, Stress Management, Chronic Diseases, Respiration, Mental Health Therapies
Beginner · Course · 1 - 3 Months

University of Geneva
Skills you'll gain: Health Care Procedure and Regulation, Public Health, Infectious Diseases, Environment Health And Safety, Health Policy, Epidemiology, Health Systems, International Relations, Public Safety and National Security, Emergency Response, Health Assessment, Governance
Intermediate · 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