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.

Illinois Tech
Skills you'll gain: Industrial and Organizational Psychology, Job Analysis, Talent Management, Leadership and Management, Team Leadership, Team Building, Leadership, Performance Analysis, Organizational Leadership, Human Resources, Occupational Safety And Health, Diversity and Inclusion, Team Motivation, Employee Performance Management, Workforce Development, Performance Management, Research, Employee Engagement, Scientific Methods, Employee Training
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Creativity, Creative Thinking, Organizational Leadership, Leadership, Innovation, Team Leadership, Business Leadership, Leadership and Management, Collaboration, Cultural Diversity
Beginner · Course · 1 - 4 Weeks

Nanyang Technological University, Singapore
Skills you'll gain: Systems Thinking, Case Studies, Network Analysis, Mathematical Modeling, Simulations, Social Sciences, Applied Mathematics, Policy Analysis, Agentic systems, Forecasting, Critical Thinking, Jupyter
Beginner · Course · 1 - 3 Months

University of London
Skills you'll gain: Linux, Linux Commands, Computer Systems, Command-Line Interface, Cybersecurity, Computer Architecture, Network Security, Vulnerability Assessments, Hardware Architecture, Application Security, Threat Detection, Authorization (Computing), Network Protocols, Virtual Private Networks (VPN), Operating Systems, Authentications, Network Monitoring, TCP/IP, Network Analysis
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Inference, Statistical Modeling, Regression Analysis, Data Ethics, Statistical Methods, Statistical Hypothesis Testing, Data Science, R Programming, Data Modeling, Statistical Analysis, Predictive Modeling, Mathematical Modeling, Probability & Statistics, Linear Algebra
Build toward a degree
Intermediate · Course · 1 - 3 Months

Fundação Instituto de Administração
Skills you'll gain: Big Data, Internet Of Things, Social Network Analysis, Text Mining, Apache Hadoop, Business Intelligence, Data Analysis Software, Unstructured Data, Analytics, Real Time Data, Cloud Computing, Data Science, Marketing Analytics, Fraud detection
Beginner · Course · 1 - 4 Weeks

Case Western Reserve University
Skills you'll gain: Emotional Intelligence, Organizational Leadership, Compassion, Leadership, Growth Mindedness, Organizational Change, Leadership and Management, Personal Development, Empathy, Self-Awareness, Learning Theory, Stress Management, Relationship Building, Coaching, Mindfulness, Planning
Beginner · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Calculus, Numerical Analysis, Integral Calculus, Engineering Calculations, Applied Mathematics, Differential Equations, Algebra, Trigonometry, Engineering Analysis, Advanced Mathematics, General Mathematics, Physics, Geometry, Arithmetic, Mathematical Theory & Analysis, Mathematical Modeling, Derivatives, Graphing, Deductive Reasoning
Beginner · Course · 1 - 3 Months

Pontificia Universidad Católica de Chile
Skills you'll gain: Transportation Operations, Network Routing, Supply And Demand, Network Analysis, Operations Research, Network Model, Mathematical Modeling, Capacity Management, Behavioral Economics, Game Theory, Economics, Algorithms, Applied Mathematics
Beginner · Course · 1 - 3 Months

SAS
Skills you'll gain: Predictive Modeling, Predictive Analytics, Responsible AI, Data Ethics, Data-Driven Decision-Making, Machine Learning, Applied Machine Learning, Business Ethics, Decision Tree Learning, Business Analytics, Artificial Intelligence, Performance Analysis, Data Science, Social Justice
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Visualization, Keras (Neural Network Library), Artificial Neural Networks, Interactive Data Visualization, Predictive Modeling, Tensorflow, Applied Machine Learning, Feature Engineering, Data Science, Predictive Analytics, Data Manipulation, Data Cleansing, Machine Learning, Supervised Learning, Regression Analysis, Python Programming
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Earned Value Management, ISO 9000 Series, Governance Risk Management and Compliance, Quality Management Systems, Quality Management, Continuous Improvement Process, Quality Improvement, Program Implementation, Process Improvement, Culture Transformation, Project Performance, Risk Management, Cost Management, Operational Risk, Performance Measurement, Project Controls, Process Analysis, Performance Management, Quality Control, Project Management
Beginner · Specialization · 1 - 3 Months