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.

Universidad de Palermo
Skills you'll gain: Business Process Management, Business Process, IT Management, Business Process Improvement, Technical Management, Operations Management, Continuous Improvement Process, Information Technology, Information Systems, Business Operations, Enterprise Resource Planning, Quality Management, Customer Relationship Management, IT Infrastructure, Leadership and Management, Business Intelligence, Business Strategy
Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Institutional Review Board (IRB), Clinical Trials, Health Policy, Health Disparities, Clinical Research, Clinical Research Ethics, Health Equity, Healthcare Ethics, Public Health, Epidemiology, Good Clinical Practices (GCP), Pre-Clinical Development, Policty Analysis, Research, and Development, Health Care, Medical Science and Research, Policy Development, Health Care Procedure and Regulation, Community Health, Drug Development, Research
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Data Structures, Graph Theory, Python Programming, Data Manipulation, Algorithms, Debugging
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Network Analysis, Statistical Modeling, Bayesian Network, R (Software), R Programming, Social Network Analysis, Simulations, Graph Theory, Statistical Analysis, Probability & Statistics, Markov Model, Probability Distribution, Data Visualization, Machine Learning, Statistical Hypothesis Testing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Product Promotion, Marketing Materials, Promotional Strategies, Product Knowledge, Design, Presentations, Dashboard, Graphic and Visual Design, Creative Design, Graphical Tools, Graphic Design, Selling Techniques, Sales
Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Diversity and Inclusion, Innovation, Organizational Leadership, Industrial and Organizational Psychology, Organizational Change, Creativity, Human Capital, Leadership, Drive Engagement, Team Performance Management, Change Management, Business, Business Strategy, Decision Making, Business Marketing, Neurology
Build toward a degree
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Responsible AI, Data Ethics, Deep Learning, Artificial Neural Networks, Reinforcement Learning, Generative AI, Machine Learning Algorithms, Debugging, Artificial Intelligence, Applied Machine Learning, Image Analysis, Unsupervised Learning, Machine Learning, Machine Learning Methods, Computer Vision, Artificial Intelligence and Machine Learning (AI/ML), Bayesian Statistics, Supervised Learning, Network Architecture, Markov Model
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Computational Thinking, Algorithms, Graph Theory, Data Structures, Computer Programming, C++ (Programming Language), Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Photo Editing, Photography, Image Quality, Post-Production, Color Theory
Beginner · Course · 1 - 4 Weeks

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

University of Colorado Boulder
Skills you'll gain: Sustainable Design, Sustainable Business, Sustainable Technologies, Operations Management, Manufacturing Operations, Environmental Engineering, Corporate Sustainability, Business Leadership, Industrial Engineering, Climate Change Mitigation, Product Design, Environmental Resource Management, Waste Minimization, Systems Thinking, Digital Transformation, Emerging Technologies
Build toward a degree
Beginner · Course · 1 - 4 Weeks

O.P. Jindal Global University
Skills you'll gain: Public Policies, Policy Development, Policy Analysis, Political Sciences, Economics, Policy, and Social Studies, Advocacy, Environmental Policy, Behavioral Economics, Public Administration, Program Evaluation, Ethical Standards And Conduct, Governance, Systems Thinking
Build toward a degree
Beginner · Course · 1 - 3 Months