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.

Coursera
Skills you'll gain: Data Preprocessing, Java, Data Structures, File I/O, Java Programming
Intermediate · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Caregiving, Long Term Care, Nursing Care, Home Health Care, Dignity in Care, Care Management, Health Care, Supply And Demand, Emotional Intelligence, Social Work, Healthcare Ethics, Human Services, Empathy & Emotional Intelligence, Community and Social Work, Stress Management, Sociology
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: No-Code Development, Application Design, Application Performance Management, Application Development, Authorization (Computing), Authentications, Application Lifecycle Management, Data Management, Restful API, Application Security, Scalability, Software Versioning, Automation, Data Security, Debugging, Data Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Centers, Network Security, Network Troubleshooting, Virtual Machines, Network Monitoring, Wide Area Networks, Virtualization, Wireless Networks, Firewall, Cloud Infrastructure, Hardening, Network Architecture, Network Infrastructure, Virtual Private Networks (VPN), TCP/IP, Cloud Computing, Security Information and Event Management (SIEM), Remote Access Systems, Network Protocols, Internet Of Things
Advanced · Course · 1 - 3 Months

Skills you'll gain: Model Deployment, MLOps (Machine Learning Operations), AWS SageMaker, Amazon Web Services, Cloud Security, AWS Identity and Access Management (IAM), Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Scalability, Cloud Computing, Amazon CloudWatch, Data Management
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Bitbucket, Git (Version Control System), Version Control, Collaborative Software, Code Review, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Apache Hadoop, Apache Spark, Real Time Data, Scala Programming, Data Integration, Command-Line Interface, Apache Hive, Big Data, Applied Machine Learning, Data Processing, Apache, System Design and Implementation, Apache Cassandra, Data Pipelines, Java, Distributed Computing, IntelliJ IDEA, Application Deployment, Enterprise Application Management
Intermediate · Specialization · 3 - 6 Months

Scrimba
Skills you'll gain: User Interface (UI) Design, Color Theory, Typography, Web Design, Design, Usability, HTML and CSS, Design Elements And Principles, Layout Design
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Version Control, GitHub, Git (Version Control System), Data Transformation, Data Science, Data Analysis, R (Software), Data Processing, R Programming, Rmarkdown, Software Installation, Command-Line Interface
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Design Reviews, Design Elements And Principles, Layout Design, Typography, Portfolio Management, Animations, Marketing Materials, Marketing Design, Branding, Infographics, Color Theory, Social Media Content, Newsletters
Beginner · Course · 3 - 6 Months

The Chinese University of Hong Kong
Skills you'll gain: Operations Research, Applied Mathematics, Algorithms, Mathematical Modeling, Combinatorics, Computational Logic, Advanced Mathematics, Performance Tuning, Theoretical Computer Science, Simulations, Linear Algebra
Intermediate · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Music Theory, Music History, Musical Composition, Music, Classical Music, Music Performance, Performing Arts
Mixed · Course · 1 - 4 Weeks