Finite Group Databasebeta

#20269515⋊C2 #27211850

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

Aliases

unambiguous semidirect product#20269515⋊C2
unambiguous semidirect product#20269521⋊C2
unambiguous semidirect product#20269527⋊C2

Splittings

Fitting, socle, derived, HallC11×C61 ⋊ C22×C5
Hall#16809822 ⋊ 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:

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

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, 42);