Finite Group Databasebeta

#34195067

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C27

Aliases

No aliases for this group.

Splittings

FittingC2×#340×C79 ⋊ C2
SylowC79 ⋊ #11022

Subgroups

subgroupG/H
centerC24D4×D79
commutatorC22×C4×C79C22×C4
FrattiniC23×C4C22×D79
FittingC2×#340×C79C2
socleC24×C79C2×D4
prime radicalC23×D632C2
cosocleC23×C4×C79C23
hypercenterC2×#340D79
hypocenterC79#11022
LCSG ▷ C22×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C24 ◁ C23×C4 ◁ C2×#340

1822 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 99
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 3 generators on 99 points:

(1,2)(3,4)(5,6)(7,8)(9,10)(11,12)(13,14)(15,16)(17,18)(19,20)(21,22)(23,24)(25,26)(27,28)(29,30)(31,32)(33,34)(35,36)(37,38)(39,40)(41,42)(43,44)(45,46)(47,48)(49,50)(51,52)(53,54)(55,56)(57,58)(59,60)(61,62)(63,64)(65,66)(67,68)(69,70)(71,72)(73,74)(75,76)(77,78)(89,91)(93,97)(94,95)(98,99);(2,3)(4,5)(6,7)(8,9)(10,11)(12,13)(14,15)(16,17)(18,19)(20,21)(22,23)(24,25)(26,27)(28,29)(30,31)(32,33)(34,35)(36,37)(38,39)(40,41)(42,43)(44,45)(46,47)(48,49)(50,51)(52,53)(54,55)(56,57)(58,59)(60,61)(62,63)(64,65)(66,67)(68,69)(70,71)(72,73)(74,75)(76,77)(78,79)(85,87)(92,93)(94,98)(95,97)(96,99);(80,81,82,83)(84,85)(86,87)(88,89)(90,91)(93,97)(94,95)(98,99)

Polycyclic presentation:

2^8,79|a^2=g,d^2=h,f^2=h,b^a=bd,c^a=ce,d^a=dh,f^a=fh,c^b=cf,d^b=dh,f^b=fh,i^b=i^78,d^c=dh,f^c=fh,i^c=i^78

Conjugacy classes & character table

2248 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 76366);