Groups of order 99

This article gives information about, and links to more details on, groups of order 99
See pages on algebraic structures of order 99 | See pages on groups of a particular order

There are two abelian groups of order 99 from the classification of finite abelian groups. By the classification of abelianness-forcing numbers, these are the only groups of order 99.

The list

Group	Second part of GAP ID (GAP ID is (99,second part))	abelian?
cyclic group:Z99	1	Yes
direct product of Z3 and Z33	2	Yes