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 Colorado Boulder
Skills you'll gain: Electrical Engineering, Numerical Analysis, Linear Algebra, Physics, Angular, Applied Mathematics, Advanced Mathematics, Mathematical Modeling, Engineering Analysis, Calculus, Differential Equations, Simulations, Physical Science
Build toward a degree
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Musical Composition, Music, Music Theory, Electronic Media, Design Software, Peer Review, Creativity, Patch Management, System Requirements
Intermediate · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Design Thinking, Creative Thinking, Intellectual Property, Conceptual Design, 3D Modeling, Solution Design, Innovation, Prototyping, Social Impact, Manufacturing Processes, Manufacturing and Production, Entrepreneurship
Beginner · Course · 1 - 3 Months

University of New Mexico
Skills you'll gain: Trauma Care, Music, Mental and Behavioral Health, Cultural Sensitivity, Compassion, Health Care, Mindfulness, Cultural Diversity
Beginner · Course · 1 - 3 Months

École Polytechnique
Skills you'll gain: Physics, Mechanics, Linear Algebra, Probability, Calculus, Differential Equations, Mathematical Theory & Analysis, Advanced Mathematics, Experimentation
Intermediate · Course · 1 - 3 Months

University of Geneva
Skills you'll gain: Biochemistry, Molecular Biology, Cell Biology, Chemistry, Biotechnology, Laboratory Research, Laboratory Techniques, Scientific Visualization, Biology, Specimen Labeling
Intermediate · Course · 1 - 3 Months

Berklee
Skills you'll gain: Music Performance, Post-Production, Music, Media Production, Musical Composition, Music Theory, Editing
Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Presentations, English Language, Verbal Communication Skills, Communication, Non-Verbal Communication, Entrepreneurship, Microsoft PowerPoint, Business Communication, Sales, Interpersonal Communications, Project Management, Business Leadership, Crisis Management, Organizational Structure, Marketing, Leadership and Management, Business, Vocabulary, Telecommuting, Human Resources
Intermediate · Specialization · 1 - 3 Months

Tecnológico de Monterrey
Skills you'll gain: Project Management Life Cycle, Project Planning, Project Management Institute (PMI) Methodology, Project Management, Project Schedules, Project Scoping, Coordination, Project Implementation, Leadership and Management, Leadership
Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Statistical Hypothesis Testing, Statistical Methods, Statistical Inference, Bayesian Statistics, Probability & Statistics, Statistical Analysis, Sampling (Statistics), Jupyter, Python Programming, Matplotlib, NumPy
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Workday (Software), Human Capital, HR Tech, Benefits Enrollment Processes, Human Resources Information System (HRIS), People Analytics, Learning Management Systems, Human Resource Management, Staff Management, Business Reporting, Applicant Tracking Systems, Business Process, Compensation Analysis, Data Entry
Beginner · Course · 1 - 3 Months

Aptly
Skills you'll gain: TikTok, Content Performance Analysis, Business Marketing, Social Media Marketing, Content Creation, Online Advertising, Storytelling, Social Media Strategy, Social Media, Marketing Strategies, Performance Measurement, Content Marketing, Video Editing, Video Production, Social Media Content, Advertising, Digital Media Strategy, Advertising Campaigns, Performance Analysis, Marketing
Beginner · Specialization · 1 - 3 Months