Finite Group Databasebeta
Cayley diagram

C2×#1995 #21328

order256
nilpotency class3
isoclinismisoclinic class of #468
automorphismAut(G) order 131072
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#1995

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC23C2×C22⋊C4
prime radicalC24C2×D4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

603 conjugacy classes of subgroups; only the 247 normal subgroups are shown.

normal subgroups only

This group has 603 conjugacy classes of subgroups — too many to draw. Only its 247 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 26 points:

(1,2);(3,4)(5,9)(6,7)(8,10)(11,12,15,18,16,19,14,24)(13,20,23,25,21,26,22,17);(4,7)(8,9)(11,13)(12,17,19,25)(14,22)(15,23)(16,21)(18,20,24,26);(3,5,6,10)(4,8,7,9)(13,21)(17,25)(20,26)(22,23)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107297, #107299, #107353, …
maximal normal subgroup of#107297, #107299, #107353, …
maximal quotient ofC2×#9872, C2×#9873, #206777, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14316);