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.

Yonsei University
Skills you'll gain: Financial Statements, Financial Statement Analysis, Business Valuation, Income Statement, Entrepreneurial Finance, Balance Sheet, Cash Flows, Financial Analysis, Financial Modeling, Case Studies, Revenue Forecasting
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Logo Design, Canva (Software), Marketing Design, Design Elements And Principles, Marketing Materials, Color Theory, Graphic Design, Branding, Marketing, Advertising, Business
Intermediate · Guided Project · Less Than 2 Hours

Macquarie University
Skills you'll gain: Intercultural Competence, Cultural Diversity, Cultural Sensitivity, Business Ethics, Cognitive flexibility, Diversity Awareness, Diversity and Inclusion, Workplace inclusivity, Cross-Functional Team Leadership, Professionalism, Organizational Leadership, Global Marketing, Business Leadership, Collaboration, Culture, International Relations, Systems Thinking, Economics
Mixed · Course · 1 - 3 Months

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

Johns Hopkins University
Skills you'll gain: Calculus, Integral Calculus, Applied Mathematics, Graphing, Numerical Analysis, Python Programming, Advanced Mathematics, Mathematical Software, Mathematical Modeling, Derivatives, Programming Principles
Intermediate · Course · 1 - 3 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

Technical University of Munich (TUM)
Skills you'll gain: Experimentation, Program Evaluation, Community Development, Sustainable Development, Systems Thinking, Research, Human Centered Design, Culture, Cultural Diversity, Design Strategies, Case Studies, Critical Thinking
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

University of Illinois Urbana-Champaign
Skills you'll gain: Organizational Leadership, Team Leadership, Leadership, Leadership and Management, Workplace inclusivity, Motivational Skills, Decision Making, Organizational Effectiveness, Teamwork, Strategic Decision-Making, Organizational Change, Diversity and Inclusion
Mixed · Course · 1 - 3 Months