Finite Group Databasebeta
Cayley diagram

C2×#1878 #20922

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 131072
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1878

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

911 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 256

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

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#99886, #99902, C4×#1878, …
maximal normal subgroup of#99886, #99902, C4×#1878, …
maximal quotient ofC2×#8946, C2×#8950, #193574, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13910);