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.

Skills you'll gain: Feature Engineering, Data Visualization Software, Data Cleansing, Classification And Regression Tree (CART), Random Forest Algorithm, Decision Tree Learning, Scikit Learn (Machine Learning Library), Applied Machine Learning, Predictive Modeling, Data Manipulation, Data Science, Data Transformation, Data Processing, Predictive Analytics, Machine Learning, Python Programming
Beginner · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Responsive Web Design, Git (Version Control System), Web Development, Cascading Style Sheets (CSS), React.js, Version Control, Web Development Tools, Full-Stack Web Development, GitHub, HTML and CSS, Application Design, Software Design Documents, Game Design, Debugging, Software Testing, Unit Testing, Software Documentation, Software Development, Development Environment, Javascript
Beginner · Professional Certificate · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Sampling (Statistics), Engineering Management, Data-Driven Decision-Making, Probability Distribution, Descriptive Statistics, Statistical Hypothesis Testing, Estimation, Statistical Visualization, Data Analysis, Sample Size Determination, Correlation Analysis, Data Visualization, Statistical Software, Statistical Analysis, Leadership and Management, Technical Management, Leadership, R (Software), Box Plots, Problem Solving
Build toward a degree
Beginner · Specialization · 3 - 6 Months

Columbia University
Skills you'll gain: Computer Graphics, Image Analysis, 3D Modeling, Visualization (Computer Graphics), Medical Imaging, Computer Vision, Automation Engineering
Beginner · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: Music History, Classical Music, Music, Music Theory, Musical Composition, Music Performance, Performing Arts
Mixed · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Continuous Delivery, Test Driven Development (TDD), Unit Testing, Continuous Deployment, Continuous Integration, CI/CD, Agile Methodology, Test Automation, Code Review, Maintainability, Software Development, Mockups, Software Development Methodologies, Test Case, Development Testing, Software Testing, Integration Testing, Debugging, Python Programming, Version Control
Intermediate · Specialization · 3 - 6 Months

University of Copenhagen
Skills you'll gain: Chronic Diseases, Healthcare Ethics, Crisis Intervention, Public Health, Health Care, Long Term Care, Emergency Response, Health Policy, Health Systems, Social Determinants Of Health, Risk Analysis
Intermediate · Course · 1 - 4 Weeks

ESSEC Business School
Skills you'll gain: Sustainable Business, Corporate Sustainability, Sustainable Development, Business Transformation, Environmental Social And Corporate Governance (ESG), Systems Thinking, Business Modeling, Waste Minimization, Innovation, Product Lifecycle Management, Case Studies, Resource Utilization, Stakeholder Engagement
Beginner · Course · 1 - 4 Weeks

Universitat Autònoma de Barcelona
Skills you'll gain: Sustainable Design, Sustainable Business, Sustainable Development, Systems Thinking, Environmental Engineering, Socioeconomics, Environmental Science, Waste Minimization, Product Lifecycle Management, Environmental Policy, Analysis, Resource Utilization
Beginner · Course · 1 - 3 Months

Skills you'll gain: Project Risk Management, Risk Management, Planning, Team Management, Project Implementation, Project Planning, Business Risk Management, Project Controls, Team Leadership, Project Management, Leadership and Management, Program Evaluation, Initiative and Leadership, Leadership, Prioritization, Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: R Programming, Predictive Analytics, Applied Machine Learning, Analytics, Data Science, Data Processing, Feature Engineering, Machine Learning, Telemarketing, Application Deployment
Intermediate · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Typography, Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Web Design, Front-End Web Development, UI Components, Web Development
Intermediate · Course · 1 - 4 Weeks