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.

Universidad de los Andes
Skills you'll gain: Sustainable Development, Environment, Pedagogy, Curriculum Development, Teaching, Student Engagement, Systems Thinking, Case Studies, Higher Education, Community Development, Instructional Strategies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Color Theory, Sales, Marketing Collateral, Design, Sales Strategy, Marketing Materials, Layout Design, Digital Design, Intellectual Property, Graphic and Visual Design Software, Product Design, Marketing
Intermediate · Guided Project · Less Than 2 Hours

Dartmouth College
Skills you'll gain: Computational Logic, Scientific Methods, Theoretical Computer Science, Logical Reasoning, Physics, Experimentation, Laboratory Experience, Physical Science, Artificial Intelligence, Computational Thinking, Mathematics and Mathematical Modeling, Simulations, Psychology, Science and Research, General Science and Research, Ancient History, Vibrations, Mechanics, Chemistry, Laboratory Equipment
Beginner · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Continuous Delivery, Test Driven Development (TDD), Unit Testing, Continuous Deployment, Continuous Integration, Agile Methodology, Test Automation, Code Review, Maintainability, Software Development, Mockups, Software Development Methodologies, Test Case, Development Testing, Testability, Software Testing, Debugging, Python Programming, Version Control
Intermediate · Specialization · 3 - 6 Months
Duke University
Skills you'll gain: Data Ethics, Exploratory Data Analysis, Data-Driven Decision-Making, Logistic Regression, Statistical Modeling, Web Scraping, Ggplot2, Model Evaluation, Data Visualization Software, Predictive Modeling, Tidyverse (R Package), Data Visualization, Data Analysis, Regression Analysis, Responsible AI, Data Transformation, R Programming, Data Science, Data Wrangling, Version Control
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Code Review, Debugging, Scripting, Python Programming, Programming Principles, Software Development
Intermediate · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Research Design, Science and Research, Laboratory Research, Research Methodologies, Statistical Analysis, Data Collection, Data Analysis Software, Neurology, Psychology, Physiology, Magnetic Resonance Imaging, Electrophysiology, Image Analysis, Medical Equipment and Technology, Human Learning, Medical Imaging, Data Visualization Software, Functional Behavior Assessment, Statistical Inference
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Change Management, Visionary, Organizational Change, Business Transformation, Strategic Leadership, Innovation, Process Analysis, Leadership and Management, Business Process Reengineering, Business Workflow Analysis, Adaptability
Intermediate · Guided Project · Less Than 2 Hours

Università di Napoli Federico II
Skills you'll gain: Research Methodologies, Qualitative Research, Research Design, Social Sciences, Case Studies, Statistical Analysis, Systems Thinking, Computational Logic, Regression Analysis, Political Sciences
Beginner · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: Digital Transformation, Business Ethics, Customer experience improvement, Predictive Modeling, Predictive Analytics, Simulation and Simulation Software, Business Transformation, Scikit Learn (Machine Learning Library), Model Evaluation, Operations Research, Analytics, Business Technologies, Business Analytics, Data-Driven Decision-Making, Feature Engineering, Business Modeling, Systems Thinking, Complex Problem Solving, Process Optimization, Technology Strategies
Intermediate · Specialization · 3 - 6 Months

Fundação Instituto de Administração
Skills you'll gain: Financial Statement Analysis, Financial Analysis, Financial Accounting, Balance Sheet, Cash Flows, Income Statement, Working Capital, Performance Analysis, Gross Profit, Operating Expense, Depreciation
Beginner · Course · 1 - 3 Months

Xi'an Jiaotong University
Skills you'll gain: Operating Systems, Microsoft Office, System Software, Computer Networking, OS Process Management, Computer Architecture, Network Architecture, Computer Systems, Computer Science, Computing Platforms, Theoretical Computer Science, Computer Hardware, Computer Literacy, Network Protocols, Information Technology, Computational Logic, Data Storage
Mixed · Course · 1 - 3 Months