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.

University of London
Skills you'll gain: Arithmetic, Theoretical Computer Science, Computational Logic, Programming Principles, Computer Science, Algorithms, Computational Thinking, Database Theory, Mathematical Modeling, Data Structures, General Mathematics, Applied Mathematics, Business Mathematics, Advanced Mathematics, Logical Reasoning, Problem Solving
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Descriptive Statistics, Linear Algebra, Exploratory Data Analysis, Data-Driven Decision-Making, Data Analysis, Bayesian Statistics, Artificial Intelligence, Probability, Regression Analysis, Calculus, Mathematical Software, Advanced Mathematics, Applied Mathematics, Probability Distribution, Mathematical Modeling, Model Optimization, Integral Calculus, Algebra, Machine Learning Algorithms, Dimensionality Reduction
Beginner · Course · 1 - 3 Months

University of Amsterdam
Skills you'll gain: Sociology, Social Studies, Social Sciences, Economics, Policy, and Social Studies, Socioeconomics, Culture, Political Sciences, Economics, Scientific Methods
Mixed · Course · 1 - 3 Months

Technical University of Denmark (DTU)
Skills you'll gain: Laboratory Testing, Quality Assurance, Infection Control, Microbiology, Infectious Diseases, Diagnostic Tests, Bioinformatics, Medical Laboratory, Molecular, Cellular, and Microbiology, Epidemiology, Public Health and Disease Prevention, Public Health, Pharmacology, Molecular Biology
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Arithmetic, Logical Reasoning, Applied Mathematics, Algebra, General Mathematics
Beginner · Course · 1 - 4 Weeks
University of London
Skills you'll gain: Arithmetic, Applied Mathematics, Computer Science, General Mathematics, Numerical Analysis, Mathematical Modeling, Algebra, Cryptography, Logical Reasoning, Geometry, Deductive Reasoning
Beginner · Course · 1 - 4 Weeks

O.P. Jindal Global University
Skills you'll gain: Econometrics, Regression Analysis, Statistical Hypothesis Testing, Statistical Methods, Probability & Statistics, Statistical Modeling, Statistical Analysis, Correlation Analysis, Time Series Analysis and Forecasting, Statistics, Economics, Statistical Inference, Mathematical Modeling, Probability Distribution, Logistic Regression, Model Evaluation
Build toward a degree
Beginner · Course · 1 - 3 Months

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

Stanford University
Skills you'll gain: Physics, European History, Verification And Validation, Scientific Methods, electromagnetics, Research, Experimentation, Mechanics, Global Positioning Systems
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Combinatorics, Probability, Probability & Statistics, Algorithms, Bayesian Statistics, Mathematical Modeling, Computational Thinking, Statistical Methods, Arithmetic, Applied Mathematics, Program Development, Python Programming
Beginner · Course · 1 - 3 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Graph Theory, Network Analysis, Social Network Analysis, Combinatorics, Network Model, Mathematical Modeling, Transportation Operations, Image Analysis, Algorithms, Theoretical Computer Science, Artificial Intelligence and Machine Learning (AI/ML), Model Optimization, Computational Thinking, Problem Solving, Embeddings
Build toward a degree
Intermediate · Course · 1 - 3 Months

Stanford University
Skills you'll gain: Game Theory, Mathematical Modeling, Graph Theory, Bayesian Statistics, Behavioral Economics, Probability, Economics, Problem Solving, Algorithms, Theoretical Computer Science, Probability Distribution
Beginner · Course · 1 - 3 Months