Let a be an element of a group G such that o(a) = r. Let m be a positive integer such that (m,r) = 1. Prove that o(am )=r

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter4: More On Groups
Section4.4: Cosets Of A Subgroup
Problem 18E: Let G be a group of finite order n. Prove that an=e for all a in G.
icon
Related questions
Question

Let a be an element of a group G such that o(a) = r. Let m be a positive integer such that (m,r) = 1. Prove that o(am )=r

Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer