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 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

University of Michigan
Skills you'll gain: Demography, Environmental Regulations, Environmental Policy, Environment Health And Safety, Pollution Prevention, Environment, Public Health, Environmental Science, Occupational Health, Hazardous Waste Operations And Emergency Response Standard (HAZWOPER), Radiation Protection, Water Quality, Community Health
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Social Network Analysis, Network Analysis, Data Visualization, Graph Theory, Relational Databases, Data Visualization Software, Data Storytelling, Data Analysis, Social Sciences, Statistical Analysis, Machine Learning, R Programming, Analytical Skills, Sociology, Natural Language Processing, Data Manipulation, Text Mining, Analytics, Social Impact, Statistical Modeling
Intermediate · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Persuasive Communication, Business Ethics, Creativity, Creative Thinking, Leadership, Organizational Leadership, Ethical Standards And Conduct, Influencing, Innovation, Diversity and Inclusion, Team Leadership, Strategic Leadership, Business Leadership, Leadership Development, Leadership and Management, Responsible AI, Communication, Artificial Intelligence, Decision Making, Cultural Diversity
Beginner · Specialization · 3 - 6 Months

Macquarie University
Skills you'll gain: Intercultural Competence, Cultural Diversity, Cultural Sensitivity, Business Ethics, Cognitive flexibility, Diversity Awareness, Diversity and Inclusion, Workplace inclusivity, Cross-Functional Team Leadership, Professionalism, Organizational Leadership, Global Marketing, Business Leadership, Collaboration, Culture, International Relations, Systems Thinking, Economics
Mixed · Course · 1 - 3 Months

UNSW Sydney (The University of New South Wales)
Skills you'll gain: Design Thinking, Business Transformation, Workforce Development, Strategic Thinking, Automation, Digital Transformation, Human Centered Design, Emerging Technologies, Innovation, Business Process Automation, Forecasting, Organizational Change
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Desktop Support, Network Troubleshooting, Technical Support and Services, Technical Support, Hardware Troubleshooting, System Support, Help Desk Support, Debugging, Microsoft Windows, Mac OS, Unix, Problem Management, Computer Hardware, Network Monitoring, Generative AI, Operating Systems, System Configuration, Software Installation, Technical Communication, Performance Tuning
Beginner · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Agentic systems, Artificial Intelligence, Algorithms, Python Programming, Programming Principles, Theoretical Computer Science, Computer Programming
Intermediate · Course · 1 - 4 Weeks

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Traffic Flow Optimization, Land Development, Spatial Analysis, Civil Engineering, Concept Of Operations, Systems Thinking, Socioeconomics, Social Sciences, Sustainable Development, Public Policies
Mixed · Course · 1 - 3 Months

Skills you'll gain: Environmental Science, Environment, Environmental Issue, Culture, Social Studies, Sustainable Systems, Sustainable Development, Liberal Arts, Systems Thinking, Diversity Awareness, Storytelling
Mixed · Course · 1 - 3 Months

Skillshare
Skills you'll gain: Canva (Software), Typography, Creative Design, Logo Design, Style Guides, Graphic and Visual Design, Marketing Design, Color Theory, Brand Strategy, Branding, Design, Graphic Design, Digital Design, Competitive Analysis, Design Elements And Principles, Content Creation, Photo Editing, Social Media Content, Layout Design, Image Quality
Beginner · Specialization · 3 - 6 Months

University of Michigan
Skills you'll gain: Consumer Behaviour, Responsible AI, Social Impact, Business Risk Management, Business Operations, Risk Analysis, Operations, Generative AI, AI Security, Environment Health And Safety, Customer experience improvement, Social Sciences, Governance, Leadership and Management
Beginner · Course · 1 - 4 Weeks