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.

Universidad de los Andes
Skills you'll gain: NoSQL, MongoDB, Distributed Computing, Database Systems, Scalability, Big Data, Databases, Database Design, Software Architecture, Systems Architecture, Data Storage Technologies, Data Modeling, Relational Databases, Unstructured Data, Graph Theory
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Creative Thinking, Information Management, Content Management, Knowledge Transfer, Digital Publishing, Curiosity, Creative Problem-Solving, Information Architecture, File Management, Systems Thinking, Critical Thinking, Productivity Software, Responsible AI, Organizational Skills, Productivity, Writing and Editing, Collaboration, Development Environment
Beginner · Course · 1 - 3 Months

Politecnico di Milano
Skills you'll gain: Socioeconomics, Epidemiology, Crisis Management, Health Technology, Health Policy, Social Sciences, Infectious Diseases, Social Work, Public Health, Telehealth, Mental Health, Health Informatics, Surveys, Data-Driven Decision-Making, Data Science, Artificial Intelligence
Beginner · Course · 1 - 3 Months

Skills you'll gain: GitHub, Git (Version Control System), Version Control, DevOps, Amazon Web Services, Collaborative Software, Continuous Integration, Linux, Code Review, Command-Line Interface
Beginner · Course · 1 - 3 Months

Skills you'll gain: Process Mapping, Six Sigma Methodology, Lean Six Sigma, Quality Improvement, Quality Management, Process Analysis, Process Improvement, Data-Driven Decision-Making, Business Process, Continuous Improvement Process, Team Oriented, Statistical Process Controls, Pareto Chart, Statistics, Statistical Methods, Root Cause Analysis
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Logo Design, Marketing Materials, Marketing Strategy and Techniques, Graphic Design, Branding, Color Theory, Product Design
Intermediate · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Package and Software Management, Code Review, Open Source Technology, GitHub, Scientific Methods, Bioinformatics, Technical Documentation, Informatics, Clinical Informatics, R (Software), Data Analysis, Programming Principles, R Programming, Version Control, Integrated Development Environments
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Social Network Analysis, Network Analysis, Data Analysis, Analytical Skills, Statistical Analysis, Behavioral Economics, Research, Data Collection, Sociology, Data Transformation, Persuasive Communication, Application Programming Interface (API), Media and Communications, Scripting, Psychology
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Cascading Style Sheets (CSS), Web Design, Web Design and Development, Git (Version Control System), Front-End Web Development, Browser Compatibility, Mobile Development, Javascript, Animations, User Interface (UI), Web Development Tools, Web Content Accessibility Guidelines, Typography, Semantic Web, GitHub, Version Control, Application Deployment, Development Environment
Beginner · Specialization · 3 - 6 Months

Radio y Televisión Española
Skills you'll gain: Social Media Content, Social Media Strategy, Social Media Management, Content Strategy, Web Content, Media and Communications, Content Creation, Social Network Analysis, Digital Communications, Research
Beginner · Course · 1 - 4 Weeks

University of Glasgow
Skills you'll gain: Business Transformation, Digital Transformation, Business Leadership, Strategic Leadership, Cross-Functional Collaboration, Organizational Leadership, Organizational Change, Leadership, Organizational Strategy, Leadership and Management, Corporate Strategy, Change Management, Innovation, Business, Strategic Decision-Making, Business Management, Business Strategy, Business Planning
Intermediate · Course · 1 - 4 Weeks