Finite Group Databasebeta
Cayley diagram

C2×#1780 #20578

order256
nilpotency class2
isoclinismisoclinic class of #392
automorphismAut(G) order 1572864
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C28

Aliases

direct productC2×#1780

Subgroups

subgroupG/H
centerC23×C4C23
commutatorC23C23×C4
Frattini, cosocleC22×C4C24
socleC24C22×C4
prime radicalC23×#41C2
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

2035 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 128

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

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

Fitting subgroup ofC2×#1780⋊C3
maximal subgroup of#107147, #107149, #107152, …
maximal normal subgroup of#107147, #107149, #107152, …
maximal quotient ofC2×#8304, C2×#8305, C2×#8306, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13566);