Let n = pq be the product of two odd primes. Recall that there are no primitive roots modulo n. Show that there are in fact 3 incongruent values of a such that ordn(a) = 2. Using this in combination with part (a), present an alternate proof that there are no primitive roots modulo pq. Where does this proof break down if p = 2? (Hint: Chinese Remainder Theorem.)
Let n = pq be the product of two odd primes. Recall that there are no primitive roots modulo n. Show that there are in fact 3 incongruent values of a such that ordn(a) = 2. Using this in combination with part (a), present an alternate proof that there are no primitive roots modulo pq. Where does this proof break down if p = 2? (Hint: Chinese Remainder Theorem.)
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.5: Congruence Of Integers
Problem 34E
Related questions
Question
Let n = pq be the product of two odd primes. Recall that there are no primitive roots modulo
n. Show that there are in fact 3 incongruent values of a such that ordn(a) = 2. Using this in
combination with part (a), present an alternate proof that there are no primitive roots modulo
pq. Where does this proof break down if p = 2? (Hint: Chinese Remainder Theorem.)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 1 images
Recommended textbooks for you
Elements Of Modern Algebra
Algebra
ISBN:
9781285463230
Author:
Gilbert, Linda, Jimmie
Publisher:
Cengage Learning,
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Elements Of Modern Algebra
Algebra
ISBN:
9781285463230
Author:
Gilbert, Linda, Jimmie
Publisher:
Cengage Learning,
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning