Finite Group Databasebeta

#20269516⋊C2 #27211849

order13420
automorphism?
homologyAbelianization (H1) = C22×C5 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect product#20269516⋊C2
unambiguous semidirect product#20269522⋊C2
unambiguous semidirect product#20269528⋊C2

Splittings

Fitting, socle, derived, HallC11×C61 ⋊ C22×C5
Hall#16809823 ⋊ C22
HallD11×D61 ⋊ C5
SylowC61 ⋊ C2×AGL(1,𝔽11)
SylowC11 ⋊ C2×D61⋊C5

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC11×C61C22×C5
LCSG ▷ C11×C61
UCSC1

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 72
transitive degreeμt(G) = 671

A minimal faithful permutation representation — 2 generators on 72 points:

(1,2,8,28,31)(3,11,38,12,40)(4,13,45,17,48)(5,16,49,55,22)(6,18,53,61,47)(7,23,15,33,51)(9,29,21,57,27)(10,32,60,14,46)(19,54,59,35,58)(20,52,36,41,56)(24,25,43,50,34)(26,44,37,30,42)(63,67,68,66,71,64,65,72,69,70);(2,3)(4,6)(5,8)(7,10)(9,14)(11,19)(12,17)(13,24)(15,27)(16,21)(18,33)(20,36)(22,31)(23,41)(25,43)(26,38)(28,35)(29,48)(30,39)(32,50)(34,52)(37,53)(40,47)(42,46)(44,45)(49,56)(51,59)(54,61)(55,57)(58,60)(62,63,66,71,65,68,72,67,70,69,64)

Polycyclic presentation:

2^2,5,11,61|e^a=e^60,d^b=d^10,d^c=d^4,e^c=e^58

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(13420, 41);