What can you say about the number of elements of order 7
Chapter 24, Problem 64E(choose chapter or problem)
What can you say about the number of elements of order 7 in a group of order 168 = 8 · 3 · 7?
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer