Finite Group Databasebeta

#34207386

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1389 ⋊ C2
SylowC79 ⋊ #13373

Subgroups

subgroupG/H
centerC4#19098908
commutator, cosocleC22×C8×C79C23
FrattiniC22×C8C22×D79
FittingC79×#1389C2
socleC2×C79#2023
prime radicalC2×#14579183C22
hypercenter#1389D79
hypocenterC79#13373
LCSG ▷ C22×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C22×C4 ◁ C22×C8 ◁ #1389

364 conjugacy classes of subgroups; only the 89 normal subgroups are shown.

normal subgroups only

This group has 364 conjugacy classes of subgroups — too many to draw. Only its 89 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:

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

Polycyclic presentation:

2^8,79|a^2=d,b^2=d,e^2=g,f^2=h,g^2=h,b^a=bd,c^a=ce,e^a=eg,g^a=gh,c^b=cf,e^b=eh,i^b=i^78,d^c=dh,e^c=egh,f^c=fh,g^c=gh,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, 88685);