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.

Skills you'll gain: Cyber Governance, Security Management, Incident Management, Cyber Security Strategy, Business Continuity, Disaster Recovery, IT Management, Information Systems Security, Cybersecurity, Governance, Cyber Risk, Cyber Security Policies, Security Controls, Asset Management, Security Requirements Analysis, Information Assurance, Security Strategy, Key Performance Indicators (KPIs), Leadership and Management, Leadership
Beginner · Specialization · 3 - 6 Months

Berklee
Skills you'll gain: Musical Composition, Music Theory, Music, Instrumental Music, Writing, Creativity
Intermediate · Course · 1 - 3 Months

University of Western Australia
Skills you'll gain: Diversity Awareness, Workplace inclusivity, Diversity Equity and Inclusion Initiatives, Social Justice, Disabilities, Sociology, Labor Law, Law, Regulation, and Compliance, Advocacy, Policty Analysis, Research, and Development, Public Policies, Media and Communications, Research
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Test Planning, Test Tools, Prompt Engineering, Version Control, Debugging, Google Gemini, Software Design Patterns, Object Oriented Design, Responsible AI, Software Testing, Object Oriented Programming (OOP), GitLab, ChatGPT, Application Programming Interface (API), Mobile Development, Front-End Web Development, Back-End Web Development, Application Development, GitHub, Artificial Intelligence and Machine Learning (AI/ML)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Adobe Illustrator, Color Theory, Graphic and Visual Design, Design, Design Elements And Principles, Graphic Design, Typography, Adobe Creative Cloud, File Management
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Computational Thinking, Python Programming, Scripting, Computer Programming, Maintainability, Programming Principles, Scripting Languages, Software Development
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Structures, Graph Theory, Algorithms, Java, Theoretical Computer Science, Computer Programming, Object-Relational Mapping, Computational Thinking, Programming Principles, Performance Tuning
Intermediate · Specialization · 1 - 3 Months

Erasmus University Rotterdam
Skills you'll gain: Case Studies, Research, Scientific Methods, Investigation
Beginner · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Database Design, Relational Databases, Database Application, Database Management, Database Systems, Big Data, Machine Learning Algorithms, Databases, NoSQL, SQL, MySQL, Statistical Analysis, Data Visualization, Database Theory, Data Analysis, Apache Hadoop, Exploratory Data Analysis, Transaction Processing, Apache Kafka, Stored Procedure
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Multiple educators
Skills you'll gain: Policy Analysis, Innovation, Systems Thinking, Storytelling, Sociology, Social Sciences, Creative Thinking, Economics, Policy, and Social Studies, Transportation Operations, Sustainable Development, Cultural Diversity, Critical Thinking, Sustainable Systems, Diversity Awareness, Case Studies, Environmental Science, Sustainable Technologies, Spatial Analysis, Human Centered Design, Research
Intermediate · Specialization · 3 - 6 Months

The University of Sydney
Skills you'll gain: Chronic Diseases, Social Determinants Of Health, Systems Thinking, Epidemiology, Public Health and Disease Prevention, Public Health, Health Care, Preventative Care, Socioeconomics, Health Policy, Medical Science and Research, Nutrition and Diet, Biology, Psychology
Beginner · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: LangChain, Large Language Modeling, Query Languages, Data Storage, Semantic Web, Unstructured Data, Graph Theory, Text Mining
Intermediate · Project · Less Than 2 Hours