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.

Skills you'll gain: Strategic Thinking, Strategic Leadership, Teamwork, Team Leadership, Business Leadership, Team Management, Business Ethics, Organizational Leadership, Leadership, Leadership and Management, Strategic Decision-Making, Leadership Development, Critical Thinking and Problem Solving, Ethical Standards And Conduct, Decision Making
Beginner · Course · 1 - 4 Weeks
University of Colorado Boulder
Skills you'll gain: Systems Thinking, Cultural Sensitivity, Hydrology, Climate Change Adaptation, Environmental Monitoring, International Relations, Mathematical Modeling, Environmental Science, Biology, Political Sciences, Physics, Research, Data Collection, Chemistry
Beginner · Course · 1 - 3 Months

Universidades Anáhuac
Skills you'll gain: Human Learning, Learning Theory, Education and Training, Neurology, Pedagogy, Anatomy, Language Disorders, Cell Biology, Physiology
Beginner · Course · 1 - 3 Months

University of Washington
Skills you'll gain: GitHub, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Version Control, Git (Version Control System), HTML and CSS, Web Design and Development, Web Development, Front-End Web Development, Web Content Accessibility Guidelines, Cloud Hosting, Debugging, Semantic Web, Web Analytics and SEO, Responsive Web Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: R Programming, R (Software), Data Visualization, Time Series Analysis and Forecasting, Interactive Data Visualization, Tidyverse (R Package), Data-Driven Decision-Making, Trend Analysis, Rmarkdown, Data Processing, Data Analysis, Predictive Modeling, Data Cleansing, Data Manipulation, Revenue Management, Forecasting, Business Strategy, Demand Planning, Machine Learning
Intermediate · Guided Project · Less Than 2 Hours

O.P. Jindal Global University
Skills you'll gain: Policy Analysis, Social Justice, Ethical Standards And Conduct, Public Policies, Political Sciences, Economics, Policy, and Social Studies, Governance, Social Sciences, Economics, International Relations, Case Studies
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Canva (Software), Infographics, Planning, Graphic and Visual Design Software, Design, Design Software, Timelines, Graphic Design, Graphical Tools, Graphic and Visual Design, Collaboration
Beginner · Guided Project · Less Than 2 Hours

Berklee
Skills you'll gain: Music Theory, Music, Instrumental Music, Music Performance, Classical Music
Beginner · Course · 1 - 3 Months

Skills you'll gain: Creativity, Peer Review, Digital Design, Creative Design, Design Software, Design Elements And Principles, Color Theory
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Creative Design, Graphic and Visual Design Software, Graphic and Visual Design, Design, Visual Design, Entrepreneurship, Critical Thinking
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Employee Retention, Employee Engagement, Employee Training, Employee Surveys, Employee Performance Management, Diversity and Inclusion, Workforce Planning, Compensation and Benefits, Telecommuting, Workforce Management, Constructive Feedback, Culture Transformation, Virtual Teams, Mental Health Diseases and Disorders
Beginner · 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, Query Languages, IntelliJ IDEA, Application Deployment
Intermediate · Specialization · 3 - 6 Months