Finite Group Databasebeta
Cayley diagram

C2×#399 #2393

order128
nilpotency class2
isoclinismisoclinic class of #392
automorphismAut(G) order 196608
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C26

Aliases

direct productC2×#399

Subgroups

subgroupG/H
center, socleC24C23
commutator, Frattini, cosocleC23C24
prime radicalC25C22
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

454 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 18 points:

(1,2);(7,8,9,10)(13,17)(15,18);(4,6)(8,10)(11,12,14,16)(13,18,17,15);(3,4)(5,6)(7,8)(9,10)(11,13)(12,15)(14,17)(16,18)

Conjugacy classes & character table

44 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofC2×#399⋊C3, #11711134, #11711135, …
maximal subgroup of#9021, #9024, #9920, …
maximal normal subgroup of#9021, #9024, #9920, …
maximal quotient ofC2×#1439, C2×#1444, C2×#1445, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 1125);