Finite Group Databasebeta
Cayley diagram

C2×#1871 #20901

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1871

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC23C2×C22⋊C4
prime radicalC2×#525C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C24×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

1025 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 14
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 14 points:

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107878, #107880, #107989, …
maximal normal subgroup of#107878, #107880, #107989, …
maximal quotient ofC2×#8937, C2×#8939, C2×#8938, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13889);