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.

Yonsei University
Skills you'll gain: Disaster Recovery, Mitigation, Risk Management Framework, Emergency Response, Geospatial Information and Technology, Policty Analysis, Research, and Development, Public Policies, Environmental Policy, Systems Thinking, Case Studies, World History
Intermediate · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Economics, Policy, and Social Studies, Supply And Demand, Market Analysis, Economics, Resource Allocation, Environmental Issue, Public Policies
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Leadership and Management, Decision Making, Ethical Standards And Conduct, Business Ethics, Emotional Intelligence, Business Leadership, Organizational Leadership, Leadership, Leadership Development, Waterfall Methodology, Motivational Skills, Team Motivation, Project Management Life Cycle, Project Management, Self-Awareness
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Virtual Teams, Cultural Sensitivity, Intercultural Competence, Cultural Diversity, Team Management, Teamwork, Negotiation, Communication Strategies, Leadership and Management, Diversity Awareness, Conflict Management, Business Leadership, Leadership, Communication, Non-Verbal Communication
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: C (Programming Language), Embedded Systems, Data Structures, Algorithms, Computer Programming, Linux, Computer Programming Tools, Development Environment, Software Development Tools, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Feature Engineering, Data Ethics, Unsupervised Learning, Dimensionality Reduction, Responsible AI, Text Mining, Applied Machine Learning, Data Transformation, Data Wrangling, Anomaly Detection, Exploratory Data Analysis, Machine Learning, Natural Language Processing, Data Science, Quality Assurance, Data Validation, Machine Learning Algorithms, Python Programming
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Graphic and Visual Design, Graphic Design, Graphic and Visual Design Software, Adobe Photoshop, Creative Design, Typography, 3D Modeling, Color Theory, Visualization (Computer Graphics), Color Matching, Computer Graphic Techniques
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Pain Management, Wound Care, Blood Collection, Vital Signs, Patient-centered Care, Health Assessment, Infection Control, Clinical Nursing, Patient Treatment, Patient Evaluation, Emergency Nursing, Patient Safety, Health Care, Healthcare Ethics, Patient Positioning, Patient Education And Counseling, Medical Surgical Nursing, Nursing, Healthcare Industry Knowledge, Clinical Nutrition
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Portfolio Management, Risk Analysis, Investment Management, Time Series Analysis and Forecasting, Financial Modeling, Object Oriented Programming (OOP), Simulations, Regression Analysis, Jupyter, Python Programming, Pandas (Python Package), NumPy, Matplotlib, Data Manipulation
Intermediate · Course · 3 - 6 Months

Alfaisal University | KLD
Skills you'll gain: Game Theory, Strategic Decision-Making, Business Strategy, Target Market, Organizational Strategy, Business Modeling, Competitive Analysis, Management Consulting, Market Analysis, Portfolio Management, Growth Strategies
Beginner · Course · 1 - 4 Weeks
Duke University
Skills you'll gain: Financial Regulations, Capital Markets, Supply And Demand, Financial Analysis, Return On Investment, Economics
Intermediate · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Load Balancing, Network Monitoring, Microsoft Azure, Network Architecture, Network Administration, Virtual Private Networks (VPN), Cloud Infrastructure, Virtualization, Network Troubleshooting, Network Security, Virtual Machines
Intermediate · Course · 1 - 4 Weeks