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.

Skillshare
Skills you'll gain: Adobe Photoshop, Adobe Firefly, Photo Editing, Adobe Creative Cloud, Layout Design, Generative AI, Graphic and Visual Design, Creative Design, 3D Modeling, Typography, AI Workflows, Color Theory, Computer Graphic Techniques, Design Elements And Principles
Beginner · Specialization · 1 - 3 Months

University of Copenhagen
Skills you'll gain: Chronic Diseases, Healthcare Ethics, Public Health, Triage, Health Care, Long Term Care, Emergency Response, Health Policy, Health Systems, Social Determinants Of Health, Cultural Sensitivity, Risk Analysis
Intermediate · Course · 1 - 4 Weeks

Multiple educators
Skills you'll gain: Sustainable Design, Sustainable Business, Sustainable Technologies, Sustainable Engineering, Operations Management, Business Leadership, Waste Minimization, Manufacturing Operations, Corporate Sustainability, Environmental Resource Management, Environmental Engineering, Product Design, Systems Thinking, Manufacturing Processes, Digital Transformation
Build toward a degree
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Interactive Data Visualization, Business Intelligence, Data Presentation, Infographics, Data Visualization, Dashboard, Generative AI, Data Ethics, Responsible AI, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), SQL, Data Analysis, Presentations, Natural Language Processing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Package and Software Management, User Accounts, Unix Commands, Unix, Bash (Scripting Language), Command-Line Interface, Kubernetes, Git (Version Control System), GitHub, OS Process Management, Firewall, Ubuntu, Docker (Software), Containerization, Network Monitoring, Unix Shell, File Systems, Shell Script, TCP/IP, Version Control
Beginner · Specialization · 3 - 6 Months

Politecnico di Milano
Skills you'll gain: Product Lifecycle Management, Environmental Science, Sustainable Development, Mathematical Modeling, Sustainable Engineering, Systems Thinking, Analysis, Microsoft Excel, Case Studies, Accounting, Open Source Technology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Customer Relationship Management (CRM) Software, Customer Relationship Management, Customer experience strategy (CX), Customer Success Management, Customer Acquisition Management, Customer Analysis, Customer Data Management, Brand Loyalty, Customer Retention, Customer Relationship Building, Customer Engagement, Organizational Strategy, Marketing Automation, Case Studies, Value Propositions, Market Analysis, Portfolio Management, Analysis, Business Strategy, Competitive Analysis
Beginner · Specialization · 1 - 3 Months

The University of Notre Dame
Skills you'll gain: Market Dynamics, Business Ethics, Economics, Business Economics, Ethical Standards And Conduct, Supply And Demand, Socioeconomics, Market Research, Price Negotiation, Business, Social Justice
Beginner · Course · 1 - 4 Weeks

University of Manchester
Skills you'll gain: Sanitation, Water Resource Management, Environmental Policy, Policy Analysis, Economics, Policy, and Social Studies, Public Health, Community Development, Health Equity, Behavioral Economics, Case Studies, Revenue Management, Regulatory Affairs, Innovation
Intermediate · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: Demography, Environment, Environmental Science, Environmental Issue, Nutrition and Diet, Sustainable Development, Natural Resource Management, Sustainability Standards, Cultural Diversity, Trend Analysis
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Typography, Marketing Materials, Marketing Design, Graphic Design, Marketing Collateral, Layout Design, User Feedback, Marketing, Brochures, Digital Design, Storyboarding, Adobe Photoshop, Adobe Illustrator, Constructive Feedback, Design Elements And Principles, Image Quality, File Management, Color Theory
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Regression Analysis, Risk Analysis, Portfolio Management, Financial Modeling, Statistical Analysis, Data Visualization, Investment Management, Investments, Simulations, Financial Market, Python Programming, Matplotlib, Pandas (Python Package), Jupyter, NumPy, Data Manipulation
Intermediate · Course · 3 - 6 Months