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

University of Colorado Boulder
Skills you'll gain: Database Design, Database Management Systems, Relational Databases, Database Theory, Databases, Database Architecture and Administration, Data Modeling, Data Integrity, Diagram Design
Beginner · Course · 1 - 4 Weeks

Yale University
Skills you'll gain: Land Management, Environmental Science, Sustainable Development, Environment, Natural Resource Management, Environmental Engineering and Restoration, Environment and Resource Management, Climate Change Mitigation, Socioeconomics, Finance
Beginner · Course · 1 - 3 Months

The University of Edinburgh
Skills you'll gain: Open Mindset, Curiosity, Willingness To Learn, Self-Awareness, Empathy, Child Development, Cognitive flexibility, Emotional Intelligence, Critical Thinking, Social Sciences
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Docs, Gmail, Google Sheets, Google Workspace, Presentations, Calendar Management, Spreadsheet Software, File Management, Excel Formulas, Excel Macros, Setting Appointments, Productivity Software, Version Control, Sales Presentations, Document Management, Product Demonstration, Collaborative Software, Project Schedules, Data Visualization, Meeting Facilitation
Beginner · Specialization · 3 - 6 Months

Universiteit Leiden
Skills you'll gain: Ancient History, Culture, Language Learning, Anthropology, Social Studies, Multilingualism, Literacy, Research, Research Methodologies
Intermediate · Course · 1 - 3 Months
Illinois Tech
Skills you'll gain: Market Dynamics, Supply And Demand, Game Theory, Product Lifecycle Management, Business Strategy, Competitive Analysis, Business Economics, Business Strategies, Innovation, Strategic Thinking, Cost Reduction, Economics, Market Trend, Strategic Decision-Making, Price Negotiation, Global Marketing, Market Analysis, Strategic Planning, Team Leadership, Adaptability
Build toward a degree
Beginner · Specialization · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Presentations, English Language, Verbal Communication Skills, Communication, Non-Verbal Communication, Entrepreneurship, Microsoft PowerPoint, Business Communication, Sales, Interpersonal Communications, Project Management, Business Leadership, Crisis Management, Organizational Structure, Marketing, Leadership and Management, Business, Vocabulary, Telecommuting, Human Resources
Intermediate · Specialization · 1 - 3 Months

New York University
Skills you'll gain: Supervised Learning, Model Evaluation, Applied Machine Learning, Machine Learning, Statistical Methods, Artificial Neural Networks, Predictive Modeling, Scikit Learn (Machine Learning Library), Regression Analysis, Deep Learning, Finance, Financial Market, Tensorflow, Logistic Regression, Jupyter, Reinforcement Learning
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Manufacturing Operations, Production Planning, Digital Transformation, Technology Strategies, Business Modeling, Product Lifecycle Management, Internet Of Things, Simulation and Simulation Software, Emerging Technologies, Real Time Data, Trend Analysis, Risk Analysis, Business
Beginner · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Semiconductors, Electronic Components, Materials science, Electrical Engineering, Electronics Engineering, Mechanical Engineering, Electronics, Failure Analysis, Thermal Management, Chemical Engineering, Manufacturing Processes, Process Control, Structural Analysis, Chemistry, Engineering Calculations
Intermediate · Specialization · 3 - 6 Months

University of Pennsylvania
Skills you'll gain: Human Capital, Employee Retention, Workforce Development, Human Resource Strategy, Employee Training, Digital Transformation, Organizational Strategy, Employee Engagement, Supply Chain Management, Human Resources Management and Planning, E-Commerce, Customer experience strategy (CX), Brand Strategy, Analytics, Talent Management, Retail Store Operations, Marketing Strategies, Business Technologies, Customer Insights, Performance Management
Beginner · Specialization · 1 - 3 Months