Finite Group Databasebeta

#34197231

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11393

Subgroups

subgroupG/H
centerC2×C4#14579131
commutatorC22×C4×C79C22×C4
FrattiniC23×C4C22×D79
FittingC79×#1735C2
socleC22×C79#379
prime radicalC24×C79C2×D4
cosocleC23×C4×C79C23
hypercenter#1735D79
hypocenterC79#11393
LCSG ▷ C22×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C23×C4 ◁ #1735

850 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 119
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 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)(80,82,83,87)(81,84,85,86)(88,91)(89,96)(90,100)(92,107)(93,103)(94,104)(95,108)(97,112)(98,113)(99,114)(101,118)(102,117)(105,111)(106,116)(109,119)(110,115);(80,81,83,85)(82,86,87,84)(88,90)(89,95)(91,100)(92,106)(93,101)(94,102)(96,108)(97,110)(98,109)(99,105)(103,118)(104,117)(107,116)(111,114)(112,115)(113,119);(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)(88,89,93,97,94,98,92,105)(90,99,101,95,102,110,106,109)(91,96,103,112,104,113,107,111)(100,115,118,119,117,114,116,108)

Polycyclic presentation:

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

Conjugacy classes & character table

2236 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 78530);