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.

Skillshare
Skills you'll gain: Photo Editing, Video Editing, Adobe Photoshop, Photography, Post-Production, Adobe Creative Cloud, Color Theory, Image Quality, File Management, Creative Design, Editing, Data Import/Export, Data Storage
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Power Platform, Business Process Automation, Microsoft 365, Invoicing, No-Code Development, Application Design, Document Management, Data Integration
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Credit Risk, Financial Statement Analysis, Risk Modeling, Working Capital, Financial Analysis, Financial Modeling, Portfolio Risk, Lending and Underwriting, Financial Data, Risk Management, Risk Analysis, Bank Regulations, Analysis, Cash Flows, Income Statement, Balance Sheet, Regulatory Compliance, Business Metrics, Financial Statements, Bankruptcies
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Backlogs, User Story, Sprint Planning, Project Estimation, Agile Methodology, Agile Product Development, Sprint Retrospectives, Agile Project Management, Estimation, Acceptance Testing, Prioritization, Team Management, Cross-Functional Collaboration
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Economics, Policy, and Social Studies, Supply And Demand, Market Analysis, Economics, Resource Allocation, Environmental Issue, Public Policies
Beginner · Course · 1 - 4 Weeks

Politecnico di Milano
Skills you'll gain: Public Health and Disease Prevention, Public Health, Infectious Diseases, Epidemiology, Health Policy, Health Systems, Health Equity, Environmental Science, Community Health, Environment, Governance, Case Studies, International Relations
Intermediate · Course · 1 - 3 Months

The University of Sydney
Skills you'll gain: Economics, Financial Policy, Economics, Policy, and Social Studies, Financial Regulation, Fiscal Management, International Finance, Public Policies, Policy Analysis, Supply And Demand, Banking, Crisis Intervention
Mixed · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Institutional Review Board (IRB), Clinical Trials, Health Policy, Health Disparities, Clinical Research, Clinical Research Ethics, Health Equity, Healthcare Ethics, Public Health, Epidemiology, Good Clinical Practices (GCP), Pre-Clinical Development, Policty Analysis, Research, and Development, Health Care, Medical Science and Research, Community Health, Policy Development, Policy Analysis, Drug Development, Research
Beginner · Specialization · 3 - 6 Months

Packt
Skills you'll gain: Ansible, Devops Tools, Containerization, Docker (Software), Artifactory, Kubernetes, Prometheus (Software), Apache Maven, GitHub, SonarQube, CI/CD, DevOps, Continuous Integration, Version Control, Application Deployment, Build Tools, Continuous Deployment, Grafana, Application Performance Management, Continuous Delivery
Intermediate · Specialization · 3 - 6 Months

Universidade de São Paulo
Skills you'll gain: Network Analysis, Social Network Analysis, Data Visualization, Graph Theory, Exploratory Data Analysis, Environmental Science, Data Analysis, R Programming, Data Science, Probability Distribution
Beginner · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Digital Signal Processing, Musical Composition, Music, Electronic Components, Electronics, Music Theory, Hardware Design, Embedded Systems, System Configuration, Algorithms, Instrumental Music, Performance Tuning, Data Import/Export, Programming Principles, Generative AI, Digital Communications, Creative Design, Interoperability, Other Programming Languages, Development Environment
Beginner · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Computational Logic, Agentic systems, Mathematical Modeling, Systems Design, System Requirements, Functional Requirement, Machine Controls, Theoretical Computer Science, System Design and Implementation, Engineering Analysis, Verification And Validation, Software Systems, Simulations, Automation Engineering, Control Systems, Mechanics, Systems Analysis, Automation, Diagram Design, Safety Assurance
Build toward a degree
Intermediate · Specialization · 3 - 6 Months