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, Law, Regulation, and Compliance, Advocacy, Policty Analysis, Research, and Development, Public Policies, Research
Beginner · Course · 1 - 4 Weeks

Yale University
Skills you'll gain: Land Management, Environmental Science, Sustainable Development, Environment, Natural Resource Management, Environmental Engineering and Restoration, Environment and Resource Management, Climate Change Mitigation, Socioeconomics, Finance
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Bioinformatics, Statistical Analysis, Molecular Biology, Graph Theory
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Oral Expression, Human Learning, Education Software and Technology, Technical Communication, Education and Training, Writing, Community Outreach, Learning Theory, Research, Technical Writing, Learning Management Systems, Scientific Methods, Media and Communications, Science and Research, Persuasive Communication, Program Evaluation, Interviewing Skills, Photography, Infographics, Storytelling
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Change Management, Organizational Change, Culture Transformation, Organizational Development, Agile Methodology, Business Transformation, Scalability, Leadership and Management, Organizational Strategy, Case Studies
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Data Ethics, Responsible AI, Model Evaluation, Predictive Modeling, AI Security, OpenAI, Algorithms, Data Collection, Machine Learning, Predictive Analytics, Information Privacy, Artificial Intelligence, Game Theory, Large Language Modeling, Ethical Standards And Conduct, Data Preprocessing, Personally Identifiable Information, Machine Learning Algorithms, Analytical Skills, AI Enablement
Beginner · Specialization · 3 - 6 Months

University of Geneva
Skills you'll gain: Climate Change Adaptation, Water Resources, Hydrology, Risk Management, Water Quality, Natural Resource Management, Environment, Climate Change Mitigation, Sustainable Development, Social Network Analysis, Governance, Health Disparities, Environmental Science
Intermediate · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Human Capital, Employee Retention, Workforce Development, Human Resource Strategy, Employee Training, Digital Transformation, Organizational Strategy, Employee Engagement, Supply Chain Management, Human Resources Management and Planning, E-Commerce, Customer experience strategy (CX), Brand Strategy, Analytics, Talent Management, Retail Store Operations, Marketing Strategies, Business Technologies, Customer Insights, Performance Management
Beginner · Specialization · 1 - 3 Months

University at Buffalo
Skills you'll gain: Peer Review, Governance, Leadership and Management, Discussion Facilitation, Philanthropy, Public Administration, Organizational Effectiveness, Performance Review, Organizational Leadership, Community Development, Organizational Structure, Leadership, Case Studies, Analysis, Decision Making
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: MySQL, SQL, Relational Databases, Data Analysis, Computer Programming, Computer Science
Beginner · Guided Project · Less Than 2 Hours
Universidad Austral
Skills you'll gain: Angular, Server Side, Node.JS, Responsive Web Design, LESS, Bootstrap (Front-End Framework), Mobile Development, Back-End Web Development, Version Control, Cross Platform Development, Restful API, HTML and CSS, Web Design and Development, React Redux, JavaScript Frameworks, Continuous Integration, TypeScript, iOS Development, Apple iOS, MongoDB
Beginner · Specialization · 3 - 6 Months

28DIGITAL
Skills you'll gain: Geometry, Algorithms, Computer Graphics, Data Structures, Graph Theory, Spatial Data Analysis, Computational Thinking, Geographic Information Systems, Theoretical Computer Science, Spatial Analysis
Intermediate · Course · 1 - 4 Weeks