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.

O.P. Jindal Global University
Skills you'll gain: Marketing Analytics, Customer Analysis, Customer Retention, Predictive Analytics, Customer Insights, Data-Driven Decision-Making, Personalized Service, Marketing Strategies, Business Analytics, Customer Acquisition Management, Customer experience improvement, Loyalty Programs, Consumer Behaviour
Beginner · Course · 3 - 6 Months

Skills you'll gain: Microsoft Azure, Identity and Access Management, Network Security, Cloud Security, Security Management, Authorization (Computing), Data Access, Security Information and Event Management (SIEM), Firewall, Role-Based Access Control (RBAC), Continuous Monitoring, Key Management, Threat Detection, IT Automation, Incident Management
Intermediate · Course · 1 - 4 Weeks

ISAE-SUPAERO
Skills you'll gain: Finite Element Methods, Structural Analysis, Vibrations, Engineering Analysis, Mathematical Modeling, Mechanical Engineering, Linear Algebra, Numerical Analysis, Applied Mathematics, Control Systems, Differential Equations
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Canva (Software), Animations, Content Creation, Design Elements And Principles, User Accounts, Creative Design, Color Theory, Graphical Tools
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Audit Planning, Enterprise Architecture, Compliance Management, Regulatory Compliance, Quality Assurance, Enterprise Risk Management (ERM), Quality Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Cybersecurity, Network Security, Threat Modeling, Encryption, Identity and Access Management, Information Systems Security, Threat Detection, Firewall, Infrastructure Security, Security Controls, Security Strategy, Authorization (Computing), Authentications, Security Awareness, Risk Management Framework
Beginner · Course · 1 - 3 Months

Skills you'll gain: Jenkins, Ansible, Continuous Deployment, Software Development Tools, Configuration Management, Infrastructure as Code (IaC), Application Deployment, Version Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Storytelling, Graphic and Visual Design, Marketing Design, Color Theory, Creative Thinking, Creative Problem-Solving
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Cascading Style Sheets (CSS), Web Design, Interactive Design, Color Theory, User Interface (UI), Web Development
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Animations, Motion Graphics, Storyboarding, Adobe After Effects, Computer Graphics, Video Editing, Apple software proficiency, Color Theory, Storytelling
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Computational Logic, Theoretical Computer Science, System Requirements, Verification And Validation, Mathematical Modeling, Control Systems, Computer Science, Artificial Intelligence
Build toward a degree
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Business Process Improvement, Process Optimization, Digital Transformation
Intermediate · Course · 3 - 6 Months