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 California, Irvine
Skills you'll gain: Business Writing, Time Management, Negotiation, Leadership and Management, Problem Solving, Prioritization, Project Management, Business Planning, Entrepreneurship, Finance, Communication, Business Strategy, Critical Thinking, Presentations, Analysis
Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Docker (Software), Azure DevOps, Restful API, Cross Platform Development, Microservices, Containerization, User Interface and User Experience (UI/UX) Design, DevOps, UI Components, ASP.NET, iOS Development, CI/CD, .NET Framework, Unit Testing, Software Testing, Android Development, Version Control
Intermediate · Specialization · 1 - 3 Months
Google Cloud
Skills you'll gain: Google Sheets, Google Workspace, Spreadsheet Software, Excel Formulas, Data Visualization, Version Control, Collaborative Software, Data Import/Export, Data Management, Data Sharing
Beginner · Course · 1 - 3 Months
Curtis Institute of Music
Skills you'll gain: Music Performance, Instrumental Music, Music History, Classical Music, Performing Arts, Music, Music Theory
Intermediate · Course · 1 - 3 Months

National Taiwan University
Skills you'll gain: Economics, Supply And Demand, Market Dynamics, Business Economics, Socioeconomics, Market Data, Tax, Public Policies, Policy Analysis, Decision Making
Mixed · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Integral Calculus, Calculus, Linear Algebra, Mathematical Theory & Analysis, Advanced Mathematics, Visualization (Computer Graphics), Applied Mathematics, Graphing, Mathematical Modeling, Spatial Data Analysis
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Physics, Physical Science, Materials science, Semiconductors, Chemistry, Mechanics, Advanced Mathematics, Mathematical Modeling, Computational Thinking, Simulations, Applied Mathematics, Calculus
Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Persuasive Communication, Business Ethics, Creativity, Creative Thinking, Leadership, Organizational Leadership, Ethical Standards And Conduct, Influencing, Innovation, Diversity and Inclusion, Team Leadership, Strategic Leadership, Business Leadership, Leadership Development, Leadership and Management, Responsible AI, Communication, Artificial Intelligence, Decision Making, Cultural Diversity
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Feature Engineering, Exploratory Data Analysis, Pandas (Python Package), Scikit Learn (Machine Learning Library), Data Manipulation, NumPy, Data Analysis, Python Programming, Regression Analysis, Predictive Modeling, Machine Learning, Classification And Regression Tree (CART), Data Science, Statistical Hypothesis Testing, Supervised Learning, Statistical Methods, Programming Principles, Data Structures
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Infrastructure Security, Public Safety and National Security, Cybersecurity, Cyber Attacks, Cyber Security Policies, Security Strategy, Threat Modeling, Policty Analysis, Research, and Development, World History, Risk Management Framework
Beginner · Course · 1 - 4 Weeks

IE Business School
Skills you'll gain: Economics, International Finance, International Relations, Economic Development, Socioeconomics, Economics, Policy, and Social Studies, Business Economics, Political Sciences, Supply And Demand, World History, Policty Analysis, Research, and Development, Cultural Diversity, Market Dynamics, Social Sciences, Demography
Beginner · Course · 1 - 3 Months