Finite Group Databasebeta
Cayley diagram

C2×#1991 #21317

order256
nilpotency class3
isoclinismisoclinic class of #465
automorphismAut(G) order 524288
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#1991

Subgroups

subgroupG/H
center, socle, prime radicalC24C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C24 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

623 conjugacy classes of subgroups; only the 287 normal subgroups are shown.

normal subgroups only

This group has 623 conjugacy classes of subgroups — too many to draw. Only its 287 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) = 30
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 4 generators on 30 points:

(1,2);(3,4,5,6)(7,8)(9,13)(10,11)(12,14)(15,16)(17,23)(18,27)(19,21)(20,25)(22,24)(26,29)(28,30);(4,6)(8,11)(12,13)(15,17,24,30,19,26,18,25)(16,20,27,29,21,28,22,23);(7,9,10,14)(8,12,11,13)(16,21)(20,28)(22,27)(23,29)

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107761, #110429, #110431, …
maximal normal subgroup of#107761, #110429, #110431, …
maximal quotient ofC2×#9871, C2×#9875, #206795, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14305);