Finite Group Databasebeta
Cayley diagram

C2×#1959 #21196

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

Aliases

direct productC2×#1959

Subgroups

subgroupG/H
center, socleC24C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC23×D4C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C24 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

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

normal subgroups only

This group has 907 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) = 18
transitive degreeμt(G) = 128

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

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107357, #111249, #111250, …
maximal normal subgroup of#107357, #111249, #111250, …
maximal quotient ofC2×#9640, C2×#9646, #204062, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14184);