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.

Macquarie University
Skills you'll gain: Incident Response, Incident Management, Cyber Governance, Computer Security Incident Management, Security Awareness, Cyber Security Strategy, Law, Regulation, and Compliance, Cyber Attacks, Security Management, Security Strategy, Culture Transformation, Cyber Security Policies, Intrusion Detection and Prevention, Mobile Security, Threat Detection, Disaster Recovery, Cybersecurity, Cyber Risk, Cyber Operations, Cyber Security Assessment
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Statistical Inference, Statistical Modeling, Regression Analysis, Data Ethics, Statistical Methods, Statistical Hypothesis Testing, Data Science, R Programming, Data Modeling, Statistical Analysis, Predictive Modeling, Mathematical Modeling, Probability & Statistics, Linear Algebra
Build toward a degree
Intermediate · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Inventory Accounting, Balance Sheet, Cash Management, Accounts Receivable, Financial Reporting, Depreciation, Financial Accounting, International Financial Reporting Standards, Generally Accepted Accounting Principles (GAAP), Accounting, Fixed Asset, Financial Statement Analysis, Ledgers (Accounting), Inventory Control, Asset Management, Investments, Internal Controls
Build toward a degree
Intermediate · Course · 1 - 3 Months

Fundação Instituto de Administração
Skills you'll gain: Big Data, Internet Of Things, Social Network Analysis, Text Mining, Apache Hadoop, Business Intelligence, Data Analysis Software, Unstructured Data, Analytics, Real Time Data, Cloud Computing, Data Science, Marketing Analytics, Fraud detection
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Economics, Behavioral Economics, Supply And Demand, Policy Analysis, Market Dynamics, Business Economics, Public Policies, Socioeconomics, Consumer Behaviour, Political Sciences, Decision Making
Beginner · Course · 1 - 4 Weeks

Tecnológico de Monterrey
Skills you'll gain: Negotiation, Team Management, Emotional Intelligence, Leadership, Leadership and Management, Leadership Development, Conflict Management, Interpersonal Communications, Communication, Active Listening, Project Management, Self-Awareness
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Package and Software Management, User Accounts, Unix Commands, Unix, Bash (Scripting Language), Command-Line Interface, Kubernetes, Git (Version Control System), GitHub, OS Process Management, Firewall, Ubuntu, Docker (Software), Containerization, Network Monitoring, Unix Shell, File Systems, Shell Script, TCP/IP, Version Control
Beginner · Specialization · 3 - 6 Months

Case Western Reserve University
Skills you'll gain: Emotional Intelligence, Organizational Leadership, Compassion, Leadership, Growth Mindedness, Organizational Change, Leadership and Management, Personal Development, Empathy, Self-Awareness, Learning Theory, Stress Management, Relationship Building, Coaching, Mindfulness, Planning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Simulation and Simulation Software, Systems Thinking, Visualization (Computer Graphics), Data Modeling, Mathematical Modeling, Biology, Systems Analysis, Environment, Storytelling
Beginner · Guided Project · Less Than 2 Hours

Interactive Brokers
Skills you'll gain: Financial Statement Analysis, Financial Analysis, Financial Acumen, Investments, Supply And Demand, Real Estate, Income Statement, Balance Sheet, Risk Management, Property and Real Estate, Market Dynamics, Market Trend, Portfolio Management, Growth Strategies, Business Economics, Economics, Business Valuation, Financial Trading, Technical Analysis, Research
Beginner · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Infrastructure Security, Public Safety and National Security, Cybersecurity, Cyber Attacks, Cyber Security Policies, Security Strategy, Threat Modeling, Policty Analysis, Research, and Development, World History, Risk Management Framework
Beginner · Course · 1 - 4 Weeks

Northwestern University
Skills you'll gain: Peer Review, Employee Onboarding, Professional Networking, Organizational Effectiveness, Quick Learning, Organizational Development, Professional Development, Relationship Building, Organizational Change, Organizational Skills, Planning, Adaptability, Leadership and Management, Leadership, Self-Awareness
Beginner · Course · 1 - 4 Weeks