Finite Group Databasebeta

#34181152

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1283 ⋊ C2
SylowC79 ⋊ #8606

Subgroups

subgroupG/H
centerC2×C4#14579134
commutatorC22×C4×C79C22×C4
FrattiniC2×C42C22×D79
FittingC79×#1283C2
socleC22×C79#380
prime radicalC2×#11929624C2×C4
cosocleC2×C42×C79C23
hypercenter#1283D79
hypocenterC79#8606
LCSG ▷ C22×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C2×C42 ◁ #1283

372 conjugacy classes of subgroups; only the 111 normal subgroups are shown.

normal subgroups only

This group has 372 conjugacy classes of subgroups — too many to draw. Only its 111 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) = 10112

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

Polycyclic presentation:

2^8,79|a^2=f,b^2=d,d^2=g,e^2=g,f^2=h,b^a=bd,c^a=ce,d^a=dg,c^b=ch,i^b=i^78,e^c=eg,f^c=fg,i^c=i^78

Conjugacy classes & character table

1768 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 62451);