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.

Lund University
Skills you'll gain: Climate Change Mitigation, Sustainable Development, Climate Change Adaptation, Social Justice, Sustainable Systems, Community Development, Environmental Issue, Systems Thinking, Stakeholder Engagement, Visionary, Data-Driven Decision-Making, Research, Finance, Innovation, Strategic Partnership
Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Human Resources, Human Capital, Labor Relations, Diversity Equity and Inclusion Initiatives, Diversity and Inclusion, Change Management, Organizational Change, Team Management, Employee Engagement, Negotiation, Talent Management, Conflict Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Office, Version Control, Document Management, Content Management, User Accounts, Data Sharing, Web Content Accessibility Guidelines
Beginner · Guided Project · Less Than 2 Hours

Fred Hutchinson Cancer Center
Skills you'll gain: Code Review, Version Control, GitHub, Package and Software Management, CI/CD, Continuous Integration, Open Source Technology, Development Environment, Continuous Deployment, Software Development Tools, Docker (Software), Containerization, Scientific Methods, Devops Tools, Data Sharing, Key Management, Git (Version Control System), Automation, Software Documentation, Technical Documentation
Beginner · Specialization · 3 - 6 Months

Codio
Skills you'll gain: Go (Programming Language), Object Oriented Programming (OOP), Web Services, Debugging, Python Programming, Restful API, Server Side, Performance Tuning, Version Control, Software Engineering
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Sustainable Business, Corporate Sustainability, Stakeholder Engagement, Sustainability Reporting, Environmental Social And Corporate Governance (ESG), Supply Management, Sustainability Standards, Procurement, Business Operations, Strategic Communication, Communication Strategies, Water Sustainability, Employee Engagement, Operational Efficiency, Supply Chain Management, Resource Utilization, Innovation, Waste Minimization, Systems Thinking, Culture
Beginner · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Artificial Intelligence, Internet Of Things, Unsupervised Learning, Python Programming, Deep Learning, Applied Machine Learning, Machine Learning, Artificial Neural Networks, Reinforcement Learning, Computer Vision, Supervised Learning, Emerging Technologies, Technology Solutions, Embedded Software, Infrastructure Architecture, Natural Language Processing
Intermediate · Course · 1 - 3 Months

University at Buffalo
Skills you'll gain: Peer Review, Governance, Consulting, Leadership and Management, Report Writing, Performance Analysis, Leadership, Management Consulting, Organizational Change, Change Management, Organizational Effectiveness, Analysis, Data Collection
Mixed · Course · 1 - 3 Months

Skillshare
Skills you'll gain: Photo Editing, Photography, Image Quality, Typography, Editing, Post-Production, Graphics Software, Color Theory, Automation
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Pain Management, Wound Care, Blood Collection, Vital Signs, Patient-centered Care, Health Assessment, Infection Control, Clinical Nursing, Patient Treatment, Patient Evaluation, Emergency Nursing, Patient Safety, Health Care, Healthcare Ethics, Patient Positioning, Patient Education And Counseling, Medical Surgical Nursing, Nursing, Healthcare Industry Knowledge, Clinical Nutrition
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Prompt Engineering, ChatGPT, Application Programming Interface (API), OpenAI, Authentications, Large Language Modeling, Key Management, Performance Tuning, Debugging
Intermediate · Course · 1 - 3 Months

Ball State University
Skills you'll gain: Data Visualization, Rmarkdown, Exploratory Data Analysis, Data Visualization Software, Ggplot2, Interactive Data Visualization, Plot (Graphics), Statistical Visualization, R (Software), R Programming, Data Storytelling, Data Presentation, Histogram, Scatter Plots, Data Analysis
Build toward a degree
Intermediate · Course · 1 - 3 Months