Finite Group Databasebeta

#34207270

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

FittingC79×#2122 ⋊ C2
SylowC79 ⋊ #13353

Subgroups

subgroupG/H
centerC2#23764525
commutator, cosocleC2×#41×C79C23
FrattiniC2×#41C22×D79
FittingC79×#2122C2
socleC2×C79#2021
hypercenter#2122D79
hypocenterC79#13353
LCSG ▷ C2×#41×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C2×#41 ◁ #2122

720 conjugacy classes of subgroups; only the 75 normal subgroups are shown.

normal subgroups only

This group has 720 conjugacy classes of subgroups — too many to draw. Only its 75 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) = 2528

A minimal faithful permutation representation — 3 generators on 111 points:

(2,8)(5,20)(7,21)(9,24)(10,11)(12,27)(13,17)(14,30)(16,26)(18,32)(22,23)(25,28)(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)(83,84)(85,86)(87,88)(89,90)(91,92)(93,94)(95,96)(97,98)(99,100)(101,102)(103,104)(105,106)(107,108)(109,110);(1,3)(2,7)(4,17)(5,14)(6,15)(8,23)(9,25)(10,21)(11,22)(12,16)(13,19)(18,31)(20,30)(24,28)(26,27)(29,32)(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)(82,83)(84,85)(86,87)(88,89)(90,91)(92,93)(94,95)(96,97)(98,99)(100,101)(102,103)(104,105)(106,107)(108,109)(110,111);(1,2)(3,12)(4,16)(5,8)(6,11)(7,13)(9,19)(10,20)(14,27)(15,25)(17,22)(18,26)(21,31)(23,29)(24,32)(28,30)

Polycyclic presentation:

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

Conjugacy classes & character table

925 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 88569);