Finite Group Databasebeta

#34175539

order20224
automorphism?
homologyAbelianization (H1) = C42 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7303

Subgroups

subgroupG/H
centerC22#19098325
commutatorC2×C8×C79C42
FrattiniC2×C4×C8C2×D79
FittingC4×#108×C79C2
socleC22×C79#340
prime radicalC23×C79#103
cosocleC2×C4×C8×C79C22
hypercenterC4×#108D79
hypocenterC79#7303
LCSG ▷ C2×C8×C79 ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C2×C42 ◁ C2×C4×C8 ◁ C4×#108

204 conjugacy classes of subgroups; only the 83 normal subgroups are shown.

normal subgroups only

This group has 204 conjugacy classes of subgroups — too many to draw. Only its 83 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) = 119
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 2 generators on 119 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)(81,84)(83,85)(86,87)(88,90,93,104,92,108,107,119,95,105,106,118,94,103,91,102)(89,96,99,112,110,111,97,101,100,114,115,116,98,113,109,117);(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)(80,81,83,86,84,82,87,85)(88,89,92,98,95,100,94,110)(90,101,103,116,105,117,108,112)(91,99,93,109,107,115,106,97)(96,104,111,102,114,118,113,119)

Polycyclic presentation:

2^8,79|a^2=d,b^2=e,c^2=f,d^2=gh,e^2=fgh,f^2=h,b^a=bc,c^a=cf,e^a=efg,f^a=fh,i^a=i^78,c^b=cg,d^b=dh,i^b=i^78

Conjugacy classes & character table

2230 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 56838);