Finite Group Databasebeta

#34207479

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

Aliases

No aliases for this group.

Splittings

FittingC2×#362×C79 ⋊ C2
SylowC79 ⋊ #13388

Subgroups

subgroupG/H
centerC22#19098698
commutator, cosocleC22×C8×C79C23
FrattiniC22×C8C22×D79
FittingC2×#362×C79C2
socleC22×C79#447
prime radicalC2×#11929624D4
hypercenterC2×#362D79
hypocenterC79#13388
LCSG ▷ C22×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C22×C4 ◁ C22×C8 ◁ C2×#362

396 conjugacy classes of subgroups; only the 93 normal subgroups are shown.

normal subgroups only

This group has 396 conjugacy classes of subgroups — too many to draw. Only its 93 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) = 115
transitive degreeμt(G) = 10112

A minimal faithful permutation representation — 3 generators on 115 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)(80,82,83,81)(85,91)(86,95)(87,100)(88,101)(90,104)(92,93)(94,110)(96,99)(97,98)(102,111)(103,109)(105,114)(106,108)(107,112);(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)(82,83)(84,86)(85,90)(87,99)(88,95)(89,98)(91,108)(92,112)(93,106)(94,107)(96,102)(97,101)(100,115)(103,105)(104,109)(110,114)(111,113);(81,82)(84,85,89,94)(86,90,98,107)(87,91,102,110)(88,103,101,93)(92,111,109,100)(95,105,97,106)(96,114,99,108)(104,115,112,113)

Polycyclic presentation:

2^8,79|a^2=h,c^2=d,e^2=gh,f^2=h,g^2=h,b^a=bd,c^a=ce,e^a=eg,f^a=fh,g^a=gh,c^b=cf,e^b=eh,f^b=fh,i^b=i^78,e^c=eg,f^c=fh,g^c=gh,i^c=i^78

Conjugacy classes & character table

1288 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 88778);