Number System for CAT and Quantitative Aptitude

Mastering the number system is the critical first step to scoring high in the quantitative aptitude section of competitive exams like the CAT. This text-based course breaks down complex mathematical concepts into clear, structured, and easy-to-follow written explanations. You will transform your approach to math by learning how to systematically analyze numbers, identify patterns, and apply fast problem-solving techniques. By studying detailed examples and practicing written exercises, you will develop the speed and accuracy needed for exam conditions. What you'll learn: - Understand the core classifications of numbers, including primes, composites, and integers. - Apply advanced divisibility rules and find unit digits of large powers quickly. - Solve complex remainder problems using Euler's theorem and Fermat's Little Theorem. - Calculate the number of factors, sum of factors, and trailing zeroes for any expression. - Master LCM and HCF concepts along with their practical application patterns. - Practice modern shortcut methods and digital sum techniques to eliminate incorrect options. This course begins with fundamental definitions and properties before guiding you through step-by-step derivations and structured practice problems. You will progress from basic arithmetic concepts to high-level quantitative reasoning. This course is designed for beginners starting their exam preparation journey, as well as test-takers looking to solidify their mathematical foundations. No advanced math background is required. Start building your quantitative skills today through focused reading and systematic practice.