Finite Group Databasebeta

#34185228

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Splittings

FittingC79×#1293 ⋊ C2
SylowC79 ⋊ #9332

Subgroups

subgroupG/H
centerC22#19098441
commutatorC22×C4×C79C22×C4
FrattiniC23×C4C22×D79
FittingC79×#1293C2
socleC22×C79#386
prime radical#23774216C2
cosocleC23×C4×C79C23
hypercenter#1293D79
hypocenterC79#9332
LCSG ▷ C22×C4×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23×C4 ◁ #1293

464 conjugacy classes of subgroups; only the 85 normal subgroups are shown.

normal subgroups only

This group has 464 conjugacy classes of subgroups — too many to draw. Only its 85 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 111
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 111 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)(80,83)(81,86)(82,88)(84,91)(85,92)(87,90)(89,94)(93,95)(96,99)(97,103)(98,105)(100,109)(101,108)(102,110)(104,111)(106,107);(80,82,84,89)(81,85)(83,88,91,94)(86,92)(87,93)(90,95)(96,98,101,97,102,106,100,104)(99,105,108,103,110,107,109,111);(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)(80,81)(82,85,89,93)(83,90,91,86)(84,87)(88,92)(94,95)(96,97)(98,101)(99,107,110,105)(100,106)(102,104)(103,109,111,108)

Polycyclic presentation:

2^8,79|a^2=f,b^2=dfg,d^2=gh,e^2=gh,b^a=bd,c^a=ce,d^a=dg,e^a=eh,i^a=i^78,d^b=dh,e^b=eg,f^b=fh,d^c=dg,e^c=egh,f^c=fg,i^c=i^78

Conjugacy classes & character table

1282 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 66527);