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.

Johns Hopkins University
Skills you'll gain: GitHub, Unix, Git (Version Control System), Unix Commands, Version Control, Bash (Scripting Language), Ubuntu, Command-Line Interface, Cloud Computing, Shell Script, Linux, Mac OS, Scripting, Scripting Languages, Programming Principles, File Management
Beginner · Course · 1 - 3 Months

Yeshiva University
Skills you'll gain: Ancient History, Art History, World History, Research, Color Theory, Timelines, Cultural Diversity, Storytelling
Mixed · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Marketing Analytics, AI Personalization, Advanced Analytics, Customer Retention, Analytics, Marketing Effectiveness, Predictive Modeling, Marketing, Data Analysis, Social Network Analysis, Customer Analysis, Data Ethics, Customer Insights, Market Analysis, Text Mining, Predictive Analytics, Marketing Strategy and Techniques, Digital Marketing, Machine Learning, Generative AI
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Xi'an Jiaotong University
Skills you'll gain: Liberal Arts, Ancient History, Culture, Cultural Diversity, Research, Systems Thinking, Human Learning
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Embedded Systems, Reliability, Software Systems, Performance Tuning, Embedded Software, Control Systems, Hardware Architecture, Systems Architecture, Software Design, Debugging, Software Architecture, Verification And Validation, Hardware Design, System Design and Implementation, Linux, System Programming, Code Review, Systems Engineering, Real Time Data
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

University of Rochester
Skills you'll gain: Music History, Music, Music Theory, Musical Composition, Instrumental Music, Music Performance, Creativity
Beginner · Course · 1 - 3 Months

École Polytechnique
Skills you'll gain: Probability, Probability & Statistics, Probability Distribution, Simulations, Data Visualization, Statistics, Mathematical Modeling, Mathematical Theory & Analysis, Applied Mathematics
Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Sustainable Development, Water Sustainability, Nutrition and Diet, Food and Beverage, Public Health, Sustainability Standards, Health Disparities, Environmental Science, Systems Thinking, Climate Change Mitigation
Beginner · Course · 1 - 4 Weeks
Universidad Austral
Skills you'll gain: Angular, Server Side, Node.JS, Responsive Web Design, LESS, Bootstrap (Front-End Framework), Mobile Development, Back-End Web Development, Version Control, Cross Platform Development, Restful API, HTML and CSS, Web Design and Development, React Redux, JavaScript Frameworks, Continuous Integration, TypeScript, iOS Development, Apple iOS, MongoDB
Beginner · Specialization · 3 - 6 Months

Tecnológico de Monterrey
Skills you'll gain: Critical Thinking, Organizational Leadership, Positivity, Self-Awareness, Stress Management, Leadership, Resilience, Influencing, Motivational Skills, Decision Making, Personal Development, Leadership Development, Industrial and Organizational Psychology, Leadership and Management, Emotional Intelligence, Business Leadership, Systems Thinking, Strategic Decision-Making, Research, Analysis
Advanced · Specialization · 1 - 3 Months

Skills you'll gain: Color Theory, User Interface and User Experience (UI/UX) Design, Logo Design, Typography, Interaction Design, Figma (Design Software), Adobe Illustrator, Wireframing, Marketing Materials, Marketing Design, Layout Design, Usability, Web Content Accessibility Guidelines, Graphic Design, User Centered Design, Photo Editing, Peer Review, Adobe Firefly, Game Design, Adobe Photoshop
Beginner · Professional Certificate · 3 - 6 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