Finite Group Databasebeta

#34197819

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11548

Subgroups

subgroupG/H
centerC22#99×D79
commutator, prime radicalC24×C79C22×C4
FrattiniC2×C22⋊C4C22×D79
FittingC79×#1326C2
socleC22×C79C2×#99
cosocleC2×C22⋊C4×C79C23
hypercenter#1326D79
hypocenterC79#11548
LCSG ▷ C24×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23 ◁ C2×C22⋊C4 ◁ #1326

380 conjugacy classes of subgroups; only the 69 normal subgroups are shown.

normal subgroups only

This group has 380 conjugacy classes of subgroups — too many to draw. Only its 69 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) = 5056

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

Polycyclic presentation:

2^8,79|a^2=e,b^2=h,c^2=h,e^2=g,b^a=bd,d^a=df,f^a=fh,c^b=cgh,e^b=ef,i^b=i^78,i^c=i^78,e^d=eh

Conjugacy classes & character table

1051 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 79118);