Finite Group e

The unique (and trivial) group of Order 1 is denoted $\left\langle{e}\right\rangle{}$. It is (trivially) Abelian and Cyclic. Examples include the Point Group $C_1$ and the integers modulo 1 under addition.

$\langle e \rangle$	1
1	1

The only class is $\{1\}$.