Finite Group Databasebeta

C22×D4×#518 #72324185

order2048
nilpotency class2
automorphism?
homologyAbelianization (H1) = C27×C4 · Schur multiplier (H2) = C227

Aliases

direct productC22×D4×#518

Subgroups

subgroupG/H
center, socleC25C26
commutatorC22C27×C4
Frattini, cosocleC23C28
prime radicalC24×D42C2
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C25 ◁ G
LECSG ▷ C23 ▷ C1

2101200 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 8 generators on 20 points:

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

Conjugacy classes & character table

680 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofC22×D4×#3484
maximal normal subgroup ofC22×D4×#3484

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from a minimal faithful permutation representation:

gap> G := Group((10,11), (9,10,12,11), (10,11)(13,14)(15,18)(16,19)(17,20), (9,11,12,10)(13,15)(14,17)(16,20)(18,19), (3,4), (1,2)(3,4), (13,15)(14,18)(16,20)(17,19), (5,6,7,8)(13,14)(15,17)(16,19)(18,20));