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.

Dartmouth College
Skills you'll gain: Talent Management, People Development, Professional Networking, Collaboration, Leadership Development, Team Motivation, Teamwork, People Management, Entrepreneurship, Innovation, Leadership and Management, Leadership, Creativity, Employee Coaching, Mentorship, Influencing, Employee Retention, Recruitment Strategies, Growth Strategies
Beginner · Course · 1 - 4 Weeks

California Institute of the Arts
Skills you'll gain: Typography, Infographics, Computer Graphics, Visual Design, Visualization (Computer Graphics), Design, Graphic Design, Graphic and Visual Design Software, Design Elements And Principles, Photo/Video Production and Technology, Color Theory, Adobe Creative Cloud, Creativity
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Statistical Methods, Probability & Statistics, Data Ethics, Statistical Analysis, Quantitative Research, Statistical Inference, Statistics, Sample Size Determination, Sampling (Statistics)
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apache Spark, Data Pipelines, MLOps (Machine Learning Operations), PySpark, Application Deployment, IBM Cloud, Machine Learning, Containerization, Data Science, Python Programming, Performance Tuning, Scalability
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Logo Design, Prompt Engineering, Brainstorming, Creative Design, Brand Strategy, Branding, Graphic and Visual Design, ChatGPT, Color Theory, Target Audience
Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Oral Expression, Non-Verbal Communication, Learning Theory, Storytelling, Education Software and Technology, Human Learning, Motivational Interviewing, Conflict Management, Interpersonal Communications, Technical Communication, Education and Training, Media and Communications, Driving engagement, Teaching, Persuasive Communication, De-escalation Techniques, Writing, Scientific Methods, Rapport Building, Diversity Awareness
Beginner · Specialization · 1 - 3 Months

Columbia University
Skills you'll gain: Reinforcement Learning, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Algorithms, Markov Model, Deep Learning, Decision Support Systems, Simulations, Probability Distribution, Statistical Methods
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Linear Algebra, Algebra, Differential Equations, Calculus, Mathematical Modeling, Mathematical Theory & Analysis, Geometry
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Robotic Process Automation, Artificial Intelligence, Automation, Graph Theory, Algorithms, Computer Vision, Data Structures, Python Programming, Simulations, Real Time Data
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Metasploit, Penetration Testing, Vulnerability Scanning, Exploitation techniques, Vulnerability Assessments, Cybersecurity, Data Ethics, Virtual Machines, Linux, Technical Documentation
Beginner · Guided Project · Less Than 2 Hours

O.P. Jindal Global University
Skills you'll gain: Organizational Structure, Leadership and Management, Business Ethics, Business Management, Business Planning, Human Resources Management and Planning, Operations Management, People Management, Organizational Effectiveness, Organizational Strategy, Decision Making, Leadership, Business Strategies, Performance Measurement, Critical Thinking
Beginner · Course · 1 - 3 Months

University of Leeds
Skills you'll gain: Professional Networking, Communication, Lifelong Learning, Goal Setting, Constructive Feedback, Professional Development, Willingness To Learn, LinkedIn, Adaptability, Planning, Personal Development, Resilience, Social Media Content, Interviewing Skills
Beginner · Course · 1 - 4 Weeks