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 Western Australia
Skills you'll gain: Diversity Awareness, Workplace inclusivity, Diversity Equity and Inclusion Initiatives, Social Justice, Disabilities, Sociology, Labor Law, Law, Regulation, and Compliance, Advocacy, Policty Analysis, Research, and Development, Public Policies, Media and Communications, Research
Beginner · Course · 1 - 4 Weeks
Universidad Austral
Skills you'll gain: Responsive Web Design, LESS, Bootstrap (Front-End Framework), Version Control, HTML and CSS, UI Components, Web Design, Web Development Tools, Cascading Style Sheets (CSS), Web Development, Front-End Web Development, Javascript and jQuery, Application Deployment, Node.JS, Javascript
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Tensorflow, Supervised Learning, Artificial Neural Networks, Regression Analysis, Applied Machine Learning, Machine Learning Algorithms, Deep Learning, IBM Cloud, Machine Learning, Predictive Modeling, Decision Tree Learning, Natural Language Processing, Scikit Learn (Machine Learning Library), Computer Vision, Data Science, Python Programming
Advanced · Course · 1 - 4 Weeks

Wesleyan University
Skills you'll gain: Motivational Interviewing, Cognitive Behavioral Therapy, Mental Health Therapies, Behavioral Health, Mental and Behavioral Health, Psychotherapy, Psychology, Experimentation, Health Education, Goal Setting
Beginner · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Health Informatics, Business Analytics, Health Information Management and Medical Records, Analytics, Patient Safety, Health Care, Health Administration, Patient-centered Care, Statistical Analysis, Quantitative Research, Performance Measurement, Data Analysis, Data-Driven Decision-Making, Descriptive Analytics, Organizational Strategy, Peer Review, Strategic Thinking, Data Management, Systems Thinking
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Python Programming, Algorithms, Computer Programming, Theoretical Computer Science, Linear Algebra, Mathematics and Mathematical Modeling, Computer Science, Algebra, Object Oriented Programming (OOP), IBM Cloud, Scripting, Probability, Artificial Intelligence and Machine Learning (AI/ML), Data Processing, Mathematical Modeling, Data Structures, Data Manipulation, Probability & Statistics, Applied Mathematics, Software Installation
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Field-Programmable Gate Array (FPGA), Application Specific Integrated Circuits, Computational Logic, Computer Architecture, Hardware Design, Electronics Engineering, Electronics, Programmable Logic Controllers, Electronic Systems, Semiconductors, Electronic Components, Data Storage, Data Storage Technologies
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Animations, Editing, Writing and Editing, Content Creation, Video Editing, Video Production, Training and Development
Beginner · Guided Project · Less Than 2 Hours

Erasmus University Rotterdam
Skills you'll gain: Economic Development, Community Development, Entrepreneurship, Project Design, Sustainable Development, Socioeconomics, International Relations, Competitive Analysis, New Business Development, Innovation, Business Economics, Policy Development, Governance
Beginner · Course · 1 - 3 Months
The Hong Kong University of Science and Technology
Skills you'll gain: Market Liquidity, Analysis, Financial Policy, Economics, International Finance, Financial Market, Financial Regulation, Market Dynamics, Supply And Demand, Forecasting
Intermediate · Course · 1 - 4 Weeks

Northwestern University
Skills you'll gain: Music Theory, Music, Instrumental Music, Music Performance, Classical Music, Lecturing, Coordination
Mixed · Course · 1 - 3 Months

Michigan State University
Skills you'll gain: Unity Engine, 3D Modeling, Color Theory, Animation and Game Design, Game Design, Autodesk Maya, Video Game Development, Computer Graphics, Adobe Photoshop
Intermediate · Course · 1 - 3 Months