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, Environment and Resource Management, Water Resource Management, Water Sustainability, Sustainability Standards, Climate Change Adaptation, Environment, Natural Resource Management, Plant Operations and Management, Sustainable Systems, Water Resources, Systems Thinking, Environmental Science, General Science and Research, Taxonomy, Spatial Analysis, Socioeconomics, Biology
Intermediate · Specialization · 3 - 6 Months

Dartmouth College
Skills you'll gain: Computational Logic, Scientific Methods, Theoretical Computer Science, Logical Reasoning, General Science and Research, Physics, Experimentation, Physical Science, Artificial Intelligence, Computational Thinking, Simulations, Computer Science, Psychology, Ancient History, Vibrations, Mechanics, Chemistry, Laboratory Equipment, Research, World History
Beginner · Specialization · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Human Capital, Employee Retention, Workforce Development, Employee Training, Talent Management, Digital Transformation, Organizational Strategy, Human Resources, Employee Engagement, Supply Chain Management, Human Resources Management and Planning, E-Commerce, Customer experience strategy (CX), Supply Chain, Brand Strategy, Analytics, Brand Management, Marketing Strategies, Customer Insights, Performance Management
Beginner · Specialization · 1 - 3 Months

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

Arizona State University
Skills you'll gain: Materials science, Chemical Engineering, Chemistry, Engineering, Mechanical Engineering, Physical Science, Physics, Semiconductors
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Calculus, Mathematical Software, Data Analysis, Mathematical Theory & Analysis, Derivatives, Graphing, Algebra
Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Back-End Web Development, Program Development, Algorithms, Integrated Development Environments, Programming Principles, Pseudocode, Debugging, Computational Thinking, Engineering Software, C# (Programming Language), Version Control, Software Engineering, GitHub, Git (Version Control System), Data Structures, Microsoft Copilot
Beginner · Course · 1 - 3 Months

Skills you'll gain: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Unit Testing, Data Structures, Java Programming, Development Testing, Algorithms, Program Development, Software Testing, Java, Computer Programming, Software Development, Programming Principles, Debugging, Scalability
Beginner · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Diversity Equity and Inclusion Initiatives, Diversity and Inclusion, Diversity Programs, Intercultural Competence, Diversity Training, Human Resource Strategy, Strategic Planning, Diversity Awareness, Employee Retention, Demography, Workplace inclusivity, Benchmarking, Social Justice, Cultural Diversity, Human Resources, Recruitment Strategies, Peer Review, Organizational Development, Workforce Development, Leadership and Management
Intermediate · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: Pandas (Python Package), Version Control, Git (Version Control System), Data Manipulation, Software Development Tools, Development Environment, Data Structures, Python Programming, Data Analysis Software, NumPy, Data Import/Export, Integrated Development Environments, Virtual Environment
Beginner · Course · 1 - 4 Weeks

Sapienza University of Rome
Skills you'll gain: Ancient History, 3D Modeling, Public History, Scientific Methods, Data Sharing, Anthropology, Investigation, Cultural Diversity, Case Studies, Art History, Research, Data Management, Data Collection
Mixed · Course · 1 - 3 Months

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