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.

California Institute of the Arts
Skills you'll gain: Music Theory, Music, Musical Composition, Classical Music, Music History, Music Performance
★ 4.6 (173) · Intermediate · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Needs Assessment, Program Implementation, Stakeholder Engagement, Human Capital, Goal Setting, Program Development, Planning, Analysis, Collaboration
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Brute-force attacks
★ 4.5 (555) · Intermediate · Course · 1 - 4 Weeks

University of Amsterdam
Skills you'll gain: Logical Reasoning, Deductive Reasoning, General Mathematics
★ 4.4 (300) · Advanced · Course · 1 - 3 Months

Skillshare
Skills you'll gain: User Interface (UI), User Interface (UI) Design, Responsive Web Design, User Interface and User Experience (UI/UX) Design, User Experience Design, Digital Design, Web Design, User Experience, Motion Graphics, Adobe XD, Interactive Design, No-Code Development, Animations, Layout Design, Prototyping, Graphic Design, Design Elements And Principles, Augmented and Virtual Reality (AR/VR), Digital Publishing
Beginner · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Computational Logic, Logical Reasoning, Deductive Reasoning, Data Structures, Algorithms
Beginner · Course · 1 - 3 Months

Pohang University of Science and Technology(POSTECH)
Skills you'll gain: Blockchain, Application Development, Investments, Digital Assets, Algorithms
Intermediate · Course · 1 - 3 Months

Michigan State University
Skills you'll gain: Music Theory, Music, Musical Composition
★ 4.5 (764) · Beginner · Course · 1 - 4 Weeks

Technical University of Denmark (DTU)
Skills you'll gain: Laboratory Testing, Quality Assurance, Microbiology, Medical Laboratory, Public Health, Molecular Biology
★ 4.7 (2.6K) · Intermediate · Course · 1 - 3 Months

Stanford Online
Skills you'll gain: Physics
★ 4.9 (3.2K) · Beginner · Course · 1 - 3 Months

University of Minnesota
Skills you'll gain: Clinical Leadership, Leadership, Nursing, Health Informatics, Innovation, Self-Awareness, Personal Development
★ 4.6 (49) · Beginner · Course · 1 - 3 Months

Skillshare
Skills you'll gain: Graphic and Visual Design, Graphic Design, Layout Design, Design, Design Elements And Principles, Storytelling, Visual Storytelling
Beginner · Course · 1 - 4 Weeks