Show that if p is a prime number then every equation of the form ax ≡ b mod p with a 6≡ 0 mod p has at most one solution. Give examples to show that linear equations mod n (for n not prime) that can have zero or multiple solutions.
Show that if p is a prime number then every equation of the form ax ≡ b mod p with a 6≡ 0 mod p has at most one solution. Give examples to show that linear equations mod n (for n not prime) that can have zero or multiple solutions.
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 37E
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Show that if p is a prime number then every equation of
the form ax ≡ b mod p with a 6≡ 0 mod p has at most one solution. Give
examples to show that linear equations mod n (for n not prime) that can
have zero or multiple solutions.
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