Finite Group Databasebeta
Cayley diagram

C2×#1904 #20996

order256
nilpotency class3
isoclinismisoclinic class of #1902
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1904

Subgroups

subgroupG/H
center, socleC22#386
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×AGL(1,ℤ/8)C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

947 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 4 generators on 18 points:

(1,2);(3,4,7,10,8,12,6,11)(5,13,15,17,16,18,14,9);(3,5)(4,9,12,17)(6,14)(7,15)(8,16)(10,13,11,18);(4,10)(6,7)(9,13)(11,12)(14,15)(17,18)

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×#1904, #355851, #356620, …
maximal normal subgroup ofC4×#1904, #355851, #356620, …
maximal quotient ofC2×#9087, C2×#9089, #196081, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13984);