Finite Group Databasebeta
Cayley diagram

C2×#1993 #21320

order256
nilpotency class3
isoclinismisoclinic class of #468
automorphismAut(G) order 524288
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25×C4

Aliases

direct productC2×#1993

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

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

normal subgroups only

This group has 711 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) = 22
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 4 generators on 22 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107303, #110105, #111011, …
maximal normal subgroup of#107303, #110105, #111011, …
maximal quotient ofC2×#9873, C2×#9877, #206798, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14308);