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, Davis
Skills you'll gain: Employee Coaching, Coaching, Organizational Change, Key Performance Indicators (KPIs), Management Training And Development, Team Performance Management, Employee Performance Management, Performance Management, Leadership and Management, Performance Measurement, Meeting Facilitation, Constructive Feedback, Professional Development, Personal Development, Goal Setting, Active Listening, Communication Strategies, Self-Awareness
Mixed · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Land Management, Supply Chain, Food and Beverage, Supply Chain Systems, Transportation, Supply Chain, and Logistics, Supply Chain Management, Supply And Demand, Production Management, Environment and Resource Management, Market Dynamics, Technology Solutions, Consumer Behaviour
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Delegation Skills, Stakeholder Management, Technical Management, Engineering Management, Negotiation, Mentorship, Meeting Facilitation, Decision Making, Team Leadership, Leadership, Organizational Leadership, Culture Transformation, Team Management, Leadership and Management, Courage, Growth Mindedness, Business Leadership, Team Building, Collaboration, Communication
Build toward a degree
Beginner · Specialization · 1 - 3 Months

Universiteit Leiden
Skills you'll gain: Sustainable Development, Sustainable Design, Sustainable Technologies, Environmental Resource Management, Sustainable Engineering, Environment, Environmental Science, Resource Utilization, Materials science, Supply And Demand, Economics, Analysis, Consumer Behaviour
Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Change Management, Organizational Change, Organizational Development, Leadership and Management, Business Transformation, Business Leadership, Leadership Development, Continuous Improvement Process, Team Performance Management, Emotional Intelligence, Overcoming Obstacles, Stakeholder Engagement, Employee Engagement
Intermediate · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Governance, Meeting Facilitation, Leadership and Management, Organizational Effectiveness, Leadership, Case Studies, Organizational Structure, Culture Transformation, People Development, Discussion Facilitation, Performance Improvement, Succession Planning, Business Ethics, Culture, Diversity and Inclusion, Recruitment Strategies
Mixed · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Musical Composition, Music Theory, Music, Music History, Classical Music, Creativity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: HVAC, Building Services Engineering, Thermal Management, Mechanical Engineering, Engineering Calculations, Energy and Utilities, Estimation, Environmental Issue
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Responsive Web Design, User Interface (UI) Design, Web Design, Maintainability, Typography, Cascading Style Sheets (CSS), Usability, User Experience Design, Hypertext Markup Language (HTML), Color Theory, Animations, Creativity
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Application Deployment, MLOps (Machine Learning Operations), Unit Testing, Docker (Software), Containerization, Kubernetes, IBM Cloud, Continuous Deployment, Microservices, User Feedback, Machine Learning, Performance Analysis, Responsible AI, Business Metrics, Natural Language Processing, Time Series Analysis and Forecasting, Continuous Monitoring, Data Science, Python Programming
Advanced · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Linux, Linux Commands, Computer Systems, Command-Line Interface, Cybersecurity, Computer Architecture, Network Security, Vulnerability Assessments, Hardware Architecture, Application Security, Threat Detection, Authorization (Computing), Network Protocols, Virtual Private Networks (VPN), Operating Systems, Authentications, Network Monitoring, TCP/IP, Network Analysis
Beginner · Course · 1 - 4 Weeks

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