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.

Skillshare
Skills you'll gain: Photography, Photo Editing, Post-Production, Creativity, Lifelong Learning, Photo/Video Production and Technology, Adobe Photoshop, Growth Mindedness, Creative Thinking, Storytelling, Aesthetics, Self-Awareness, Personal Development, Ethical Standards And Conduct, Persistence, Curiosity, Resilience, Overcoming Obstacles, Decision Making, Patience
Beginner · Specialization · 3 - 6 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Education Software and Technology, Supervised Learning, Machine Learning, Applied Machine Learning, Artificial Intelligence and Machine Learning (AI/ML), Learning Management Systems, Digital pedagogy, Artificial Intelligence, AI Enablement, Data Mining, Learning Theory, Human Computer Interaction, Natural Language Processing
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Virtual Environment, Canva (Software), Color Theory, Design, Creative Design, Design Elements And Principles, Graphic and Visual Design Software, Graphic and Visual Design, Graphic Design, Marketing
Intermediate · Guided Project · Less Than 2 Hours

O.P. Jindal Global University
Skills you'll gain: Policy Analysis, Social Justice, Ethical Standards And Conduct, Public Policies, Political Sciences, Economics, Policy, and Social Studies, Governance, Social Sciences, Economics, International Relations, Case Studies
Beginner · Course · 1 - 3 Months

The University of Notre Dame
Skills you'll gain: Data Ethics, Analytical Skills, Responsible AI, Big Data, Ethical Standards And Conduct, Machine Learning, Business Ethics, Information Privacy, Artificial Intelligence, Technology Strategies, Social Justice
Beginner · Course · 1 - 4 Weeks

Universiteit Leiden
Skills you'll gain: Policy Development, Policy Analysis, Data Ethics, Information Privacy, Healthcare Ethics, Medical Privacy, Cultural Sensitivity, Liberal Arts, Informed Consent, Healthcare Industry Knowledge, Biotechnology
Beginner · Course · 1 - 3 Months

Skills you'll gain: GitHub, Version Control, Git (Version Control System), Unix Commands, Unix Shell, Software Versioning, Linux Commands, Command-Line Interface, Software Configuration Management, File Management
Beginner · Course · 1 - 3 Months

University of Amsterdam
Skills you'll gain: Social Sciences, Surveys, Social Determinants Of Health, Scientific Methods, Infectious Diseases, Community Health, Health Systems, Public Health, Health Policy, Governance, Systems Thinking, Health Care Procedure and Regulation
Intermediate · Course · 1 - 4 Weeks

Berklee
Skills you'll gain: Musical Composition, Music Theory, Music, Peer Review, Music Performance, Creativity, Writing and Editing, Writing
Beginner · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Information Technology, Case Studies, Team Leadership, Governance, Resource Allocation, Decision Making
Intermediate · Course · 1 - 3 Months

Tecnológico de Monterrey
Skills you'll gain: Systems Thinking, Critical Thinking, Complex Problem Solving, Creative Thinking, Analytical Skills, Cognitive flexibility, Collaboration, Open Mindset, Decision Making
Beginner · Course · 1 - 4 Weeks

IE Business School
Skills you'll gain: Growth Strategies, Entrepreneurship, Performance Measurement, Key Performance Indicators (KPIs), Go To Market Strategy, Product Management, Sales Strategy, Product Development, Operational Efficiency, Business Strategies, Business Process, Sales, Business Strategy, Price Negotiation, Customer Acquisition Management, Investments, Leadership and Management
Beginner · Course · 1 - 4 Weeks