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: Threat Detection, Cyber Security Strategy, Cyber Threat Intelligence, Cybersecurity, Interactive Data Visualization, Geospatial Information and Technology, Web Scraping, Digital Forensics, IT Automation, Data Security, Security Awareness, Personally Identifiable Information, Network Security, Scripting, Network Analysis, Open Source Technology, Data Analysis Software, Information Privacy
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Architecture, Routing Protocols
Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Bootstrap (Front-End Framework), Web Design, HTML and CSS, Web Design and Development, Front-End Web Development, User Interface (UI), User Interface (UI) Design, UI Components
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Team Management, Delegation Skills, Team Performance Management, Team Building, Management Training And Development, Team Motivation, Team Leadership, Trustworthiness, Drive Engagement, Virtual Teams, Organizational Leadership, Performance Management, Employee Coaching, Goal Setting, Coaching
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AutoCAD Civil 3D, Autodesk Revit, Autodesk, Grading (Landscape), AutoCAD, Stormwater Management, Engineering Plans And Specifications, Engineering Analysis, Design, Visualization (Computer Graphics), Coordination, Design and Product, Data Management
Beginner · Course · 3 - 6 Months

Skills you'll gain: Lease Contracts, International Financial Reporting Standards, Revenue Recognition, Generally Accepted Accounting Principles (GAAP), Accounting, Financial Accounting, Balance Sheet, Financial Reporting, Asset Management, Cash Flows
Beginner · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Supervised Learning, Bayesian Network, Logistic Regression, Artificial Neural Networks, Machine Learning Methods, Statistical Modeling, Predictive Modeling, Model Evaluation, Statistical Machine Learning, Probability & Statistics, Bayesian Statistics, Deep Learning, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Machine Learning Algorithms, Statistical Methods, Artificial Intelligence, Regression Analysis, Classification Algorithms, Statistical Inference
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Pay Per Click Advertising, Performance marketing, Google Ads, Keyword Research, Advertising Campaigns, Search Engine Marketing, Marketing Budgets, Online Advertising, Paid media, Advertising, Digital Advertising, Marketing, Data-Driven Decision-Making, Digital Marketing, Sales Presentation, Performance Metric
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Sampling (Statistics), SAS (Software), Data Integration, Statistical Programming, Statistical Methods, Data Manipulation, Data Processing, Data Management, SQL, Data Transformation, Data Governance, Transaction Processing, Version Control, Data Structures, File Management
Intermediate · Course · 1 - 3 Months

Niel Asher Education
Skills you'll gain: Manual Therapy, Athletic Training, Respiratory Therapy
Advanced · Course · 1 - 4 Weeks
Skills you'll gain: Electronic Systems, Basic Electrical Systems, Electrical Engineering, Applied Mathematics, Hardware Design, Electronics, Electronic Components, Mathematical Modeling, Simulation and Simulation Software, Engineering Analysis, Analysis, High Voltage, Grant Applications
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: SQL, Database Systems, Database Theory, Database Management, Query Languages, Database Design, Relational Databases, Database Administration, Database Application, Data Access, Data Science, Data Analysis, Data Manipulation, Data Modeling, Data Integrity
Build toward a degree
Beginner · Course · 1 - 3 Months