Number System Prep for the CAT Exam

Scoring high on the quantitative aptitude section of the CAT requires a rock-solid understanding of the number system. This text-based course breaks down complex mathematical concepts into clear, digestible explanations designed to build your problem-solving speed. You will transition from memorizing formulas to deeply understanding how numbers behave, allowing you to tackle even the most challenging exam questions with confidence. What you'll learn: 1. Understand foundational concepts including the classification of numbers, factors, and multiples. 2. Apply divisibility rules and find unit digits for large exponential expressions. 3. Solve complex remainder problems using Euler's theorem and Fermat's Little Theorem. 4. Master base system conversions and the properties of recurring decimals. 5. Practice step-by-step algebraic breakdowns of highest common factors and lowest common multiples. 6. Learn modern mental math shortcuts and digital root techniques to eliminate wrong options quickly. The course begins with core definitions and number classifications before moving systematically through divisibility, remainders, and advanced properties. You will read comprehensive explanations and work through structured practice problems designed to mirror the actual exam format. This course is designed for CAT aspirants at any stage of their preparation who want to build or reinforce their quantitative foundations. No advanced mathematical background is required. Start reading today to sharpen your quantitative skills and boost your percentile.