Question
Linear Algebra Question on Groups
Let G be a group of order 39 such that it has exactly one subgroup of order 3 and exactly one subgroup of order 13. Then, which one of the following statements is TRUE ?
A
G is necessarily cyclic
B
G is abelian but need not be cyclic
C
G need not be abelian
D
G has 13 elements of order 13
Answer
G is necessarily cyclic
Explanation
Solution
The correct option is (A) : G is necessarily cyclic.