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.

Northeastern University
Skills you'll gain: Project Closure, Engineering Management, Project Schedules, Project Controls, Work Breakdown Structure, Project Management Life Cycle, Scheduling, Project Implementation, Earned Value Management, Project Management, Timelines, Project Performance, Project Planning, Resource Planning, Resource Management, Resource Allocation, Forecasting, Performance Metric
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Supply And Demand, Economics, Market Dynamics, Business Economics, Behavioral Economics, Policy Analysis, Business Operations, Price Negotiation, Socioeconomics, Consumer Behaviour, Political Sciences, Economics, Policy, and Social Studies, Business Strategy, Public Policies, Competitive Analysis, Resource Allocation, Decision Making, Market Analysis, Cost Benefit Analysis, Environmental Issue
Beginner · Specialization · 1 - 3 Months

Microsoft
Skills you'll gain: CI/CD, Cascading Style Sheets (CSS), GitHub, C# (Programming Language), HTML and CSS, Azure DevOps, Load Balancing, Continuous Integration, Git (Version Control System), Role-Based Access Control (RBAC), Scalability, Object Oriented Programming (OOP), Authentications, ASP.NET, Full-Stack Web Development, Web Development, SQL, Microsoft Copilot, .NET Framework, Graph Theory
Beginner · Professional Certificate · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Graphic Design, Graphic and Visual Design, Graphic and Visual Design Software, Design, Visual Design, Layout Design, Typography, Design Reviews, Adobe Photoshop, Design Elements And Principles, Design Strategies, Color Theory, Editing, Creativity
Beginner · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Workforce Planning, Employee Onboarding, Recruitment, Recruitment Strategies, Full Cycle Recruitment, Talent Acquisition, Job Analysis, Human Resources, Employee Engagement, Talent Sourcing, Interviewing Skills, Decision Making, Diversity and Inclusion
Mixed · Course · 1 - 4 Weeks

Meta
Skills you'll gain: Version Control, Unix Commands, Git (Version Control System), GitHub, Linux Commands, Software Versioning, Command-Line Interface, Linux, Collaborative Software, File Management, Software Development Tools, Software Development, Web Development
Beginner · Course · 1 - 4 Weeks

University of Toronto
Skills you'll gain: Meeting Facilitation, Presentations, Persuasive Communication, Communication, Influencing, Verbal Communication Skills, Collaboration, Team Building, Interpersonal Communications, Business Communication, Virtual Teams, Public Speaking, Professional Development, Non-Verbal Communication, Strategic Communication, Empathy, Active Listening, Negotiation
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Interactive Design, Canva (Software), Layout Design, Digital Design, Information Architecture, Browser Compatibility, Graphic and Visual Design, Typography, Design Strategies, Color Theory, Design Elements And Principles, Quality Assurance
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Theoretical Computer Science, Algorithms, Graph Theory, Data Structures, Operations Research, Public Key Cryptography Standards (PKCS), Cryptography, Programming Principles, Computational Thinking, Pseudocode, Design Strategies, Computer Science, Tree Maps, Encryption, Linear Algebra, Combinatorics, Mathematical Modeling, Advanced Mathematics, IBM Cloud, Python Programming
Build toward a degree
Advanced · Specialization · 3 - 6 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Negotiation, Game Theory, Conflict Management, Behavioral Economics, Psychology, Decision Making, Communication, Cultural Sensitivity, Business Ethics, Social Justice, Empathy & Emotional Intelligence
Beginner · Course · 1 - 3 Months
Coursera
Skills you'll gain: electromagnetics, Electrical Engineering, Electronics Engineering, Electronics, Verification And Validation, Communication Systems, Wireless Networks, Digital Communications, Telecommunications, Technical Design, Prototyping, Engineering Design Process, Simulation and Simulation Software, Simulations, Workflow Management, Radiation Protection, Network Troubleshooting, Business Workflow Analysis
Intermediate · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Productivity, Self-Motivation, Time Management, Student Support and Services, Prioritization, Overcoming Obstacles, Self-Discipline, Self-Awareness, Goal Setting, Behavior Management, Biology, Mental Health
Mixed · Course · 1 - 4 Weeks