Finite Group Databasebeta

#34209042

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1633 ⋊ C2
SylowC79 ⋊ #13684

Subgroups

subgroupG/H
centerC2#23765383
commutator, cosocleC4⋊Q8×C79C23
FrattiniC4⋊Q8C22×D79
FittingC79×#1633C2
socleC2×C79#2196
prime radical#23775204C2
hypercenter#1633D79
hypocenterC79#13684
LCSG ▷ C4⋊Q8×C79 ▷ C2×C4×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C22 ◁ C2×C4 ◁ C4⋊Q8 ◁ #1633

378 conjugacy classes of subgroups; only the 43 normal subgroups are shown.

normal subgroups only

This group has 378 conjugacy classes of subgroups — too many to draw. Only its 43 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)(80,83)(81,89)(82,93)(84,99)(85,103)(86,98)(87,101)(88,104)(90,100)(91,105)(92,106)(94,107)(95,108)(96,110)(97,109)(102,111);(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)(80,82,87,97)(81,88,91,95)(83,93,101,109)(84,102,85,94)(86,96,90,92)(89,104,105,108)(98,110,100,106)(99,111,103,107);(80,81,87,91)(82,92,97,96)(83,98,101,100)(84,90,85,86)(88,102,95,94)(89,103,105,99)(93,107,109,111)(104,106,108,110)

Polycyclic presentation:

2^8,79|a^2=h,b^2=h,d^2=h,e^2=h,f^2=h,b^a=bd,c^a=ce,d^a=dh,e^a=eh,f^a=fg,d^b=dh,e^b=efgh,g^b=gh,i^b=i^78,d^c=df,e^c=eh,f^c=fh,g^c=gh,i^c=i^78,e^d=egh,f^d=fh,f^e=fh

Conjugacy classes & character table

1039 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 90341);