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 Michigan
Skills you'll gain: Sustainable Development, Sustainable Business, Environmental Policy, Environmental Regulations, Environmental Social And Corporate Governance (ESG), Climate Change Mitigation, Cost Benefit Analysis, Economics, Oil and Gas, Policy Analysis, Supply And Demand, Market Analysis, Public Policies, Decision Making
Beginner · Course · 1 - 3 Months

Skills you'll gain: Video Editing, Animations, Post-Production, Motion Graphics, Video Production, Photo/Video Production and Technology, Cinematography, Image Quality, Color Theory
Mixed · Course · 1 - 3 Months

Università di Napoli Federico II
Skills you'll gain: Economic Development, Sustainable Development, Socioeconomics, Financial Inclusion, Economics, Human Capital, Policy Analysis, Econometrics, Program Evaluation, Social Sciences, Analysis, Financial Analysis, Entrepreneurship, Insurance, Regression Analysis
Beginner · Course · 1 - 3 Months

Kotter
Skills you'll gain: Organizational Change, Change Management, Business Transformation, Leadership and Management, Organizational Structure, Organizational Leadership, People Management, Industrial and Organizational Psychology, Leadership Development, Leadership, Drive Engagement, Stakeholder Engagement, Diversity and Inclusion, Lifelong Learning
Beginner · Course · 1 - 4 Weeks

University of Leeds
Skills you'll gain: Resource Allocation, Operations Research, Production Planning, Graph Theory, Data-Driven Decision-Making, Decision Making, Mathematical Modeling, Process Optimization, Network Planning And Design, Complex Problem Solving, Computational Logic, Algorithms, Linear Algebra, Cryptography
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Structures, Algorithms, Computer Programming, Computational Thinking, Theoretical Computer Science, Performance Tuning
Intermediate · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Unified Modeling Language, File I/O, Debugging, Object Oriented Programming (OOP), Python Programming, Computer Programming, System Programming, Pseudocode, Program Development, Event-Driven Programming, Software Design, User Interface (UI), Data Structures
Build toward a degree
Beginner · Course · 1 - 3 Months

Sungkyunkwan University
Skills you'll gain: Music, Music History, Music Theory, World Music, Aesthetics, Culture, Cultural Diversity
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Cybersecurity, Network Security, Threat Modeling, Encryption, Identity and Access Management, Information Systems Security, Threat Detection, Firewall, Infrastructure Security, Security Controls, Security Strategy, Authorization (Computing), Authentications, Security Awareness, Risk Management Framework
Beginner · Course · 1 - 3 Months

The University of Notre Dame
Skills you'll gain: Business Ethics, Market Dynamics, Economics, Socioeconomics, Supply And Demand, Business, Corporate Sustainability, Social Impact, Public Policies
Beginner · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Algorithms, Computational Thinking, Applied Mathematics, Machine Learning Algorithms, Biology, Life Sciences, Artificial Intelligence, Computer Science, Programming Principles, Mathematical Modeling, Engineering Practices
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Figma (Design Software), Typography, Graphic and Visual Design, User Interface and User Experience (UI/UX) Design, Collaborative Software, AI Workflows, Animations, Style Guides, Color Theory, Layout Design, Video Editing, Prototyping
Intermediate · Course · 1 - 3 Months