Finite Group Databasebeta

#34180792

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

FittingC79×#1556 ⋊ C2
SylowC79 ⋊ #8523

Subgroups

subgroupG/H
centerC22#19098418
commutatorC22×C4×C79C22×C4
FrattiniC2×C42C22×D79
FittingC79×#1556C2
socleC22×C79#379
prime radicalC2×#14579136C4
cosocleC2×C42×C79C23
hypercenter#1556D79
hypocenterC79#8523
LCSG ▷ C22×C4×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C2×C42 ◁ #1556

720 conjugacy classes of subgroups; only the 107 normal subgroups are shown.

normal subgroups only

This group has 720 conjugacy classes of subgroups — too many to draw. Only its 107 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)(80,83,85,84)(81,87,88,89)(82,91,92,93)(86,94,90,95)(96,98)(97,102)(99,106)(100,107)(101,103)(104,105)(108,109)(110,111);(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)(80,82)(81,86)(83,91)(84,93)(85,92)(87,94)(88,90)(89,95)(96,98)(97,101)(99,108)(100,107)(102,103)(104,110)(105,111)(106,109);(80,81,84,89,85,88,83,87)(82,90,91,95,92,86,93,94)(96,97)(98,105,107,102)(99,103)(100,104)(101,106,110,108)(109,111)

Polycyclic presentation:

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

Conjugacy classes & character table

1048 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 62091);