Aptitude
Beginner Level
Number System Cheat Sheet
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1 Pages
May 23, 2026
About This Cheat Sheet
Complete guide to Number System for competitive exams: types of numbers (natural, whole, integers, rational, irrational, real, prime, composite, even, odd, co-prime), divisibility rules (2 to 19), factors and multiples, LCM and HCF, remainders and modulus, unit digit concepts, number of trailing zeros, base system (binary, octal, hexadecimal), and important formulas with solved examples for SSC, Banking, Railway, UPSC, and other government exams.
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