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 Virginia
Skills you'll gain: Entrepreneurship, Philanthropy, Corporate Sustainability, Business Ethics, Stakeholder Management, Social Impact, Environmental Social And Corporate Governance (ESG), Stakeholder Analysis, Environmental Issue, Business Modeling, Business Strategy, Business, Financial Systems
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Canva (Software), Brand Strategy, Logo Design, Branding, Style Guides, Brand Awareness, Graphic and Visual Design, Marketing Materials, Typography, Design Elements And Principles, Color Theory, Asset Management
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Theoretical Computer Science, Algorithms, Graph Theory, Data Structures, Operations Research, Public Key Cryptography Standards (PKCS), Cryptography, Programming Principles, Computational Thinking, Pseudocode, Design Strategies, Computer Science, Tree Maps, Encryption, Linear Algebra, Combinatorics, Mathematical Modeling, Advanced Mathematics, IBM Cloud, Python Programming
Build toward a degree
Advanced · Specialization · 3 - 6 Months

Northeastern University
Skills you'll gain: Project Closure, Engineering Management, Project Schedules, Project Controls, Work Breakdown Structure, Project Management Life Cycle, Scheduling, Project Implementation, Earned Value Management, Project Management, Timelines, Project Performance, Project Planning, Resource Planning, Resource Management, Resource Allocation, Forecasting, Performance Metric
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Supply And Demand, Economics, Market Dynamics, Business Economics, Behavioral Economics, Policy Analysis, Business Operations, Price Negotiation, Socioeconomics, Consumer Behaviour, Political Sciences, Economics, Policy, and Social Studies, Business Strategy, Public Policies, Competitive Analysis, Resource Allocation, Decision Making, Market Analysis, Cost Benefit Analysis, Environmental Issue
Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Feature Engineering, Responsible AI, Generative AI, Model Deployment, Tensorflow, Google Cloud Platform, Keras (Neural Network Library), Data Preprocessing, Data Quality, MLOps (Machine Learning Operations), Exploratory Data Analysis, Machine Learning, Applied Machine Learning, Model Evaluation, Scikit Learn (Machine Learning Library), Data Cleansing, Prompt Engineering, Cloud Deployment, Data Strategy, Cloud Computing
Intermediate · Specialization · 3 - 6 Months
Rice University
Skills you'll gain: Portfolio Management, Portfolio Risk, Financial Market, Investments, Securities (Finance), Financial Systems, Securities Trading, Asset Management, Behavioral Economics, Capital Markets, Investment Management, Equities, Performance Measurement, Finance, Financial Services, Performance Analysis, Risk Management, Return On Investment, Market Liquidity, Derivatives
Beginner · Specialization · 3 - 6 Months

Wesleyan University
Skills you'll gain: Integral Calculus, Mathematical Theory & Analysis, Algebra, Advanced Mathematics, Geometry, Calculus, Trigonometry, Graphing
Intermediate · Course · 1 - 3 Months

University of London
Skills you'll gain: Oral Expression, Public Speaking, Verbal Communication Skills, Assertiveness, Self-Awareness, Communication, Personal Attributes, Composure, Interpersonal Communications, Executive Presence, Emotional Intelligence, Respiration
Beginner · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Supply And Demand, Economics, Market Dynamics, Market Analysis, Resource Allocation, Policy Analysis, Tax, Consumer Behaviour, Cost Benefit Analysis, Decision Making
Mixed · Course · 1 - 3 Months

Meta
Skills you'll gain: Version Control, Unix Commands, Git (Version Control System), GitHub, Linux Commands, Software Versioning, Command-Line Interface, Linux, Collaborative Software, File Management, Software Development Tools, Software Development, Web Development
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Graphic Design, Graphic and Visual Design, Graphic and Visual Design Software, Design, Visual Design, Layout Design, Typography, Design Reviews, Adobe Photoshop, Design Elements And Principles, Design Strategies, Color Theory, Editing, Creativity
Beginner · Course · 1 - 4 Weeks