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 Arizona
Skills you'll gain: Teamwork, Empathy, Visionary, Cultural Diversity, Collaboration, Critical Thinking and Problem Solving, Environmental Issue, Systems Thinking, Strategic Planning, Sustainable Development, International Relations, Planning, Innovation, Advocacy, Climate Change Mitigation
Beginner Ā· Course Ā· 1 - 3 Months

Skills you'll gain: Canva (Software), Design, Design Elements And Principles, Graphic and Visual Design, Digital Design, Graphic Design, Developing Training Materials, Color Theory, Journals, Digital Publishing, Marketing
Intermediate Ā· Guided Project Ā· Less Than 2 Hours

DeepLearning.AI
Skills you'll gain: MLOps (Machine Learning Operations), Large Language Modeling, Jupyter, Generative AI, Software Versioning, Data Store, Metadata Management
Intermediate Ā· Project Ā· Less Than 2 Hours

Universitat Autònoma de Barcelona
Skills you'll gain: Sustainable Design, Sustainable Business, Sustainable Development, Systems Thinking, Environmental Engineering, Socioeconomics, Environmental Science, Waste Minimization, Product Lifecycle Management, Environmental Policy, Analysis, Resource Utilization
Beginner Ā· Course Ā· 1 - 3 Months
University of Michigan
Skills you'll gain: Social Network Analysis, Network Analysis, Graph Theory, Predictive Analytics, Predictive Modeling, Pandas (Python Package), Matplotlib, Algorithms
Intermediate Ā· Course Ā· 1 - 4 Weeks

Google Cloud
Skills you'll gain: No-Code Development, Cloud Applications, Application Design, Application Performance Management, Application Development, Authorization (Computing), Authentications, Application Lifecycle Management, Data Management, Restful API, Application Security, Scalability, Software Versioning, Automation, Data Integration, Debugging
Intermediate Ā· Course Ā· 1 - 3 Months

Skills you'll gain: Docker (Software), CI/CD, Application Deployment, Amazon Elastic Compute Cloud, DevOps, Containerization, Cloud Hosting, Spring Boot, Continuous Deployment, Cloud Applications, Amazon Web Services, Continuous Integration, GitHub
Intermediate Ā· Guided Project Ā· Less Than 2 Hours

Fundação Instituto de Administração
Skills you'll gain: Financial Statement Analysis, Financial Analysis, Financial Accounting, Balance Sheet, Cash Flows, Income Statement, Working Capital, Performance Analysis, Gross Profit, Operating Expense, Depreciation
Beginner Ā· Course Ā· 1 - 3 Months

Board Infinity
Skills you'll gain: Software Quality Assurance, Software Development Life Cycle, Quality Assurance, Software Documentation, Functional Testing, Software Testing, Acceptance Testing, User Acceptance Testing (UAT), Test Case, Maintainability, Verification And Validation, Unit Testing, Software Design, System Testing, Integration Testing, Waterfall Methodology, Agile Methodology, Regression Testing
Beginner Ā· Course Ā· 1 - 4 Weeks

LearnQuest
Skills you'll gain: Continuous Delivery, Test Driven Development (TDD), Unit Testing, Continuous Deployment, Continuous Integration, CI/CD, Agile Methodology, Test Automation, Code Review, Maintainability, Software Development, Mockups, Software Development Methodologies, Test Case, Development Testing, Software Testing, Integration Testing, Debugging, Python Programming, Version Control
Intermediate Ā· Specialization Ā· 3 - 6 Months

Coursera
Skills you'll gain: Virtual Private Networks (VPN), Amazon Web Services, Cloud Computing Architecture, Cloud Infrastructure, Virtual Machines, Network Architecture, Amazon Elastic Compute Cloud
Beginner Ā· Guided Project Ā· Less Than 2 Hours

University of Alberta
Skills you'll gain: Virtual Teams, Recognizing Others, Conflict Management, Emotional Intelligence, Collaboration, Occupational Health, Teamwork, Stress Management, Mental Health, Occupational Safety and Health Administration (OSHA), Crisis Management, Empathy, Workplace inclusivity, Occupational Safety And Health, Human Resource Policies, Self-Awareness, Personal Development, Resilience, Communication, Leadership and Management
Beginner Ā· Specialization Ā· 3 - 6 Months