Number Systems

Formulas are organized based on their importance in the CAT exam.
1 HCF and LCM
2 Properties of Factors
3 Remainder Properties
4 Basics of Factorial
5 Base System
6 Divisibility by different numbers
7 Cyclicity
8 Remainder Theorems
9 Euler Totient
10 Chinese Remainder Theorem
11 Highest power of a number in a Factorial
12 Number of trailing zeros
13 The Last Non-Zero Digit For Factorials
14 Divisibility Rules for Power Expressions

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