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.

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

Skills you'll gain: Human Learning, Learning Strategies, Quick Learning, Learning Theory, Lifelong Learning, Mental Concentration, Willingness To Learn, Cognitive flexibility, Productivity, Scientific Methods
Intermediate · Course · 1 - 4 Weeks
Dartmouth College
Skills you'll gain: Neurology, Creativity, Anatomy, Critical Thinking, Culture, Mindfulness, Liberal Arts, Physiology, Research, Psychology, Social Sciences, Ethical Standards And Conduct, Human Learning, Anthropology, Biology, Sociology, Systems Thinking, Cultural Diversity, Experimentation, Science and Research
Beginner · Specialization · 1 - 3 Months

Commonwealth Education Trust
Skills you'll gain: Student Engagement, Teaching, Pedagogy, Classroom Management, Human Learning, Working With Children, Child Development, Learning Theory, Differentiated Instruction, Parent Communication, Cultural Diversity, Substance Abuse
Mixed · Course · 1 - 3 Months

University of Maryland, College Park
Skills you'll gain: Data Storytelling, Strategic Communication, Stakeholder Engagement, Persuasive Communication, Communication Planning, Growth Mindedness, Emotional Intelligence, Conflict Management, Storytelling, Target Audience, Cultural Diversity, Information Management, Stakeholder Management, Team Management, Social Skills, Teamwork, Communication Strategies, Influencing, Communication, Virtual Teams
Beginner · Specialization · 3 - 6 Months

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

University of California, Davis
Skills you'll gain: Color Theory, Typography, Cascading Style Sheets (CSS), Web Content Accessibility Guidelines, Web Design, HTML and CSS, Design Elements And Principles, Animations, User Interface (UI) Design, Web Design and Development, Visualization (Computer Graphics)
Intermediate · Course · 1 - 4 Weeks

University of Leeds
Skills you'll gain: Resource Allocation, Operations Research, Production Planning, Graph Theory, Data-Driven Decision-Making, Decision Making, Mathematical Modeling, Process Optimization, Network Planning And Design, Complex Problem Solving, Computational Logic, Algorithms, Linear Algebra, Cryptography
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: SQL, Oracle Databases, Database Design, Relational Databases, Database Theory, Database Management, Databases, Query Languages, Data Integrity, Data Modeling
Beginner · Course · 1 - 3 Months

Universidad Austral
Skills you'll gain: Curiosity, Student Engagement, Investigation, Student-Centred Learning, Teaching, Learning Strategies, Pedagogy, Scientific Methods, Science and Research, Classroom Management, Learning Theory, Instructional Strategies, Experimentation, Diversity and Inclusion
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Statistical Methods, Data Ethics, Sampling (Statistics), Probability & Statistics, Statistical Inference, A/B Testing, Quantitative Research
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Geometry, Integral Calculus, Calculus, Applied Mathematics, Linear Algebra, Advanced Mathematics, Derivatives, Algebra, Mathematical Theory & Analysis, Graphing
Mixed · Course · 1 - 3 Months