Finite Group Databasebeta
Cayley diagram

C2×#1798 #20625

order256
nilpotency class2
isoclinismisoclinic class of #392
automorphismAut(G) order 262144
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

direct productC2×#1798

Subgroups

subgroupG/H
centerC23×C4C23
commutatorC23C23×C4
Frattini, cosocleC22×C4C24
socleC24C22×C4
prime radicalC25C2×C4
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

819 conjugacy classes of subgroups; only the 311 normal subgroups are shown.

normal subgroups only

This group has 819 conjugacy classes of subgroups — too many to draw. Only its 311 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) = 128

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

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#106838, #106839, #106844, …
maximal normal subgroup of#106838, #106839, #106844, …
maximal quotient ofC2×#8561, C2×#8562, #188282, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13613);