Finite Group Databasebeta

#34195219

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11048

Subgroups

subgroupG/H
centerC22#19098440
commutator, prime radicalC24×C79C22×C4
FrattiniC23×C4C22×D79
FittingC79×#1742C2
socleC22×C79#386
cosocleC23×C4×C79C23
hypercenter#1742D79
hypocenterC79#11048
LCSG ▷ C24×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23×C4 ◁ #1742

850 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 115
transitive degreeμt(G) = 5056

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

Polycyclic presentation:

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

Conjugacy classes & character table

1762 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 76518);