4) Show that if |G| = pq for some primes p and q (not necessarily distinct) then either G is abelian or Z(G) = 1.
4) Show that if |G| = pq for some primes p and q (not necessarily distinct) then either G is abelian or Z(G) = 1.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter3: Groups
Section3.2: Properties Of Group Elements
Problem 25E: 25. Prove or disprove that every group of order is abelian.
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Modern Algebra
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I haved proved using possible cases of order of Z(G)
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