CAT Prep: Number System Fundamentals and Speed Techniques

Cracking the quantitative aptitude section of the CAT requires a rock-solid understanding of the Number System, which forms the bedrock of many advanced math problems. This text-only course is designed to take you from foundational definitions to high-speed problem-solving. You will learn how to analyze number properties, apply divisibility rules, find remainders, and use systematic shortcuts to solve complex questions quickly and accurately. In this course, you will learn to: (1) Understand foundational classifications of numbers, prime factors, and divisibility rules; (2) Apply systematic methods to solve complex remainder and unit digit problems; (3) Master algebraic identities and progression patterns commonly tested in CAT; (4) Practice step-by-step written breakdowns of exam-style quantitative questions; (5) Implement logical shortcuts and elimination techniques to save valuable test time. The course begins with essential terminology and basic arithmetic properties before guiding you through structured lessons on factors, multiples, LCM/HCF, and advanced remainder theorems. Each concept is reinforced with clear written examples and detailed explanations of the underlying logic. This course is ideal for CAT aspirants starting their quantitative preparation, with no advanced mathematical prerequisites required. Start reading today to build a strong math foundation and boost your test-taking speed.