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.

Johns Hopkins University
Skills you'll gain: Integral Calculus, Calculus, Data Integration, Vector Databases, Mathematical Theory & Analysis, Advanced Mathematics, Applied Mathematics, Mathematical Modeling, Spatial Data Analysis, Geometry, Physics
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Image Analysis, Software Installation, Data Analysis, Analysis, Scientific Methods, User Interface (UI)
Beginner · Guided Project · Less Than 2 Hours

University of Minnesota
Skills you'll gain: Social Determinants Of Health, Health Equity, Health Disparities, Health Systems, Community Health, Public Health, Health Informatics, Healthcare Ethics, Health Policy, Maternal Health, Systems Thinking, Statistical Software, Data Analysis, Box Plots, Data Ethics, Substance Abuse, Research Methodologies, Correlation Analysis, Scatter Plots, Environmental Monitoring
Beginner · Specialization · 3 - 6 Months
Duke University
Skills you'll gain: Financial Regulation, Capital Markets, Supply And Demand, Financial Analysis, Economics
Intermediate · Course · 1 - 4 Weeks

Skillshare
Skills you'll gain: Photo Editing, Video Editing, Adobe Photoshop, Photography, Post-Production, Adobe Creative Cloud, Color Theory, Image Quality, File Management, Creative Design, Editing, Data Import/Export, Data Storage
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Power Platform, Business Process Automation, Microsoft 365, Invoicing, No-Code Development, Application Design, Document Management, Data Integration
Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Web Design, Typography, Web Design and Development, Front-End Web Development, User Interface (UI), Web Development
Intermediate · Course · 1 - 4 Weeks

Alfaisal University | KLD
Skills you'll gain: Business Management, Leadership and Management, Business Administration, People Management, Performance Management, Organizational Structure, Organizational Effectiveness, Goal Setting, Administrative Support, Leadership, Human Resources
Beginner · Course · 1 - 4 Weeks
University of California, Irvine
Skills you'll gain: Blockchain, Data Sharing, Cryptography, Transaction Processing, Fraud detection, Distributed Computing, FinTech, Systems Architecture, Emerging Technologies, Software Versioning, Data Validation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Databricks, Data Lakes, Data Pipelines, Data Integration, Extract, Transform, Load, Dashboard, PySpark, SQL, Apache Spark, Pandas (Python Package), Data Management, Data Transformation, Version Control
Intermediate · Guided Project · Less Than 2 Hours
Skills you'll gain: Terraform, Infrastructure as Code (IaC), Infrastructure As A Service (IaaS), Cloud Infrastructure, Amazon Web Services, Amazon Elastic Compute Cloud, Infrastructure Architecture, Cloud Management, Program Development, Programming Principles, Cloud Platforms, Data Security, Version Control, File Management
Intermediate · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Governance, Meeting Facilitation, Leadership and Management, Organizational Effectiveness, Leadership, Leadership Development, Case Studies, Team Performance Management, Organizational Structure, Culture Transformation, Culture, Diversity and Inclusion, Recruitment Strategies
Mixed · Course · 1 - 3 Months