Finite Group Databasebeta

#34208987

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1409 ⋊ C2
SylowC79 ⋊ #13674

Subgroups

subgroupG/H
centerC2#23765386
commutator, cosocle#127×C79C23
Frattini#127C22×D79
FittingC79×#1409C2
socleC2×C79#2196
hypercenter#1409D79
hypocenterC79#13674
LCSG ▷ #127×C79 ▷ C2×C4×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C22 ◁ C2×C4 ◁ #127 ◁ #1409

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

normal subgroups only

This group has 454 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) = 95
transitive degreeμt(G) = 1264

A minimal faithful permutation representation — 3 generators on 95 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)(81,85)(83,88)(84,90)(86,92)(87,94)(89,91)(93,95);(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)(80,81,84,87)(82,85,90,94)(83,86,91,95)(88,92,89,93);(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)(83,91)(85,92)(93,94)

Polycyclic presentation:

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

Conjugacy classes & character table

688 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 90286);