Finite Group Databasebeta

C22×#34205 #72293717

order1024
nilpotency class2
automorphism?
homologyAbelianization (H1) = C26×C4 · Schur multiplier (H2) = C220

Aliases

direct productC22×#34205

Subgroups

subgroupG/H
center, socleC25C25
commutatorC22C26×C4
Frattini, cosocleC23C27
prime radicalC24×#121C2
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C25 ◁ G
LECSG ▷ C23 ▷ C1

146877 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 7 generators on 20 points:

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

Conjugacy classes & character table

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

Relationships

maximal subgroup ofC22×#7675495, C22×#7687886, C22×#7670204, …
maximal normal subgroup ofC22×#7675495, C22×#7687886, C22×#7670204, …
maximal quotient ofC22×#535916, C22×C22⋊C4×#121, C22×#517580, …

GAP

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

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