Finite Group Databasebeta
Cayley diagram

C2×#1922 #21040

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C23×C4

Aliases

direct productC2×#1922

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC23C4×D4
prime radicalC24#41
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C23×C8 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

427 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 64

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

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#137757, C4×#1922, #354510, …
maximal normal subgroup of#137757, C4×#1922, #354510, …
maximal quotient ofC2×#9533, C2×#9535, C2×#9534, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14028);