Number System Essentials for CAT Prep

Quantitative aptitude is a critical section in management entrance exams, and mastering the number system is the absolute foundation of a high score. This written course helps you build a deep understanding of numerical properties and fast-solving techniques through clear, structured explanations. By studying our comprehensive text-based lessons and practicing with step-by-step written examples, you will develop the speed and accuracy needed to tackle complex numerical problems under exam conditions. What you'll learn: Understand fundamental number classifications, prime numbers, and divisibility rules; Calculate factors, multiples, HCF, and LCM using efficient prime factorization methods; Apply remainder theorems and cycle-finding techniques to solve modular arithmetic; Master quick mental math strategies for finding squares, square roots, and unit digits of powers; Analyze and solve exam-style word problems systematically using logical reasoning. The course begins with essential terminology and basic definitions before guiding you through advanced properties of numbers, divisibility, and remainder theories, complete with detailed written walkthroughs of classic exam scenarios. This course is designed for beginners preparing for the CAT and other management entrance tests, requiring no advanced mathematical prerequisites. Start reading today to sharpen your quantitative skills and elevate your exam preparation.