Elementary Number Theory

by
Edition: Revised
Format: Hardcover
Pub. Date: 2001-12-01
Publisher(s): Waveland Pr Inc
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Table of Contents

Introduction 1(2)
Divisibility and Factorization
3(35)
Divisibility
3(7)
Prime Numbers
10(8)
Greatest Common Divisors
18(4)
The Euclidean Algorithm
22(4)
The Fundamental Theorem of Arithmetic
26(10)
Concluding Remarks
36(2)
Student Projects
36(2)
Congruences
38(38)
Congruences
38(10)
Linear Congruences in One Variable
48(6)
The Chinese Remainder Theorem
54(5)
Wilson's Theorem
59(4)
Fermat's Little Theorem; Pseudoprime Numbers
63(5)
Euler's Theorem
68(5)
Concluding Remarks
73(3)
Student Projects
73(3)
Arithmetic Functions
76(27)
Arithmetic Functions; Multiplicativity
76(5)
The Euler Phi-Function
81(5)
The Number of Positive Divisors Function
86(3)
The Sum of Positive Divisors Function
89(3)
Perfect Numbers
92(4)
The Mobius Inversion Formula
96(5)
Concluding Remarks
101(2)
Student Projects
101(2)
Quadratic Residues
103(25)
Quadratic Residues
103(5)
The Legendre Symbol
108(9)
The Law of Quadratic Reciprocity
117(9)
Concluding Remarks
126(2)
Student Projects
126(2)
Primitive Roots
128(26)
The Order of an Integer; Primitive Roots
128(6)
Primitive Roots for Prime Numbers
134(6)
The Primitive Root Theorem
140(6)
Index Arithmetic; nth Power Residues
146(6)
Concluding Remarks
152(2)
Student Projects
152(2)
Diophantine Equations
154(27)
Linear Diophantine Equations
154(5)
Nonlinear Diophantine Equations; a Congruence Method
159(2)
Pythagorean Triples
161(3)
Fermat's Last Theorem
164(4)
Representation of an Integer as a Sum of Squares
168(11)
Concluding Remarks
179(2)
Student Projects
180(1)
Continued Fractions
181(50)
Rational and Irrational Numbers
181(9)
Finite Continued Fractions
190(5)
Convergents
195(7)
Infinite Continued Fractions
202(12)
Eventually Periodic Continued Fractions
214(9)
Periodic Continued Fractions
223(5)
Concluding Remarks
228(3)
Student Projects
229(2)
A Few Applications
231(20)
A Recreational Application
231(2)
Cryptography; The RSA Encryption System
233(6)
Primality Testing
239(2)
Pell's Equation
241(7)
Concluding Remarks
248(3)
Student Projects
249(2)
Appendices 251(21)
A Mathematical Induction
251(6)
B Equivalence Relations
257(4)
C Abstract Algebra
261(3)
D The Binomial Theorem
264(2)
E Tables
266(6)
Hints and Answers to Selected Exercises 272(12)
Bibliography 284(3)
Index 287

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