Finite Group Databasebeta

#34207391

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1384 ⋊ C2
SylowC79 ⋊ #13374

Subgroups

subgroupG/H
centerC2#23764535
commutator, cosocleC22×C8×C79C23
FrattiniC22×C8C22×D79
FittingC79×#1384C2
socleC2×C79#2023
prime radicalC2×#14579183C22
hypercenter#1384D79
hypocenterC79#13374
LCSG ▷ C22×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C22×C4 ◁ C22×C8 ◁ #1384

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

normal subgroups only

This group has 360 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)(81,86)(83,96)(84,100)(85,92)(87,103)(88,91)(89,105)(90,106)(93,110)(94,101)(95,107)(97,109)(98,111)(99,102)(104,108);(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)(82,91,92,86)(83,87)(84,89)(85,88)(90,93,107,109)(94,105,100,102)(95,97)(96,108,111,103)(98,104)(99,101)(106,110);(80,81)(82,90,92,107)(83,95)(84,99)(85,88)(86,93,91,109)(87,97)(89,101)(94,103,100,108)(96,105,111,102)(98,106)(104,110)

Polycyclic presentation:

2^8,79|a^2=d,b^2=d,e^2=g,g^2=h,b^a=bd,c^a=ce,e^a=eg,f^a=fh,g^a=gh,c^b=cf,f^b=fh,i^b=i^78,d^c=dh,e^c=egh,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, 88690);