Finite Group Databasebeta

#34180703

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

FittingC79×#1495 ⋊ C2
SylowC79 ⋊ #8504

Subgroups

subgroupG/H
centerC2×C4#14579129
commutatorC42×C79C22×C4
FrattiniC2×C42C22×D79
FittingC79×#1495C2
socleC22×C79#379
prime radical#23777539C2
cosocleC2×C42×C79C23
hypercenter#1495D79
hypocenterC79#8504
LCSG ▷ C42×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C2×C42 ◁ #1495

728 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)(82,87)(84,86)(88,91)(89,95)(90,99)(92,106)(93,103)(94,108)(96,110)(97,113)(98,114)(100,118)(101,116)(102,111)(104,107)(105,117)(109,115)(112,119);(80,81)(82,86)(83,85)(84,87)(88,90)(89,94)(91,99)(92,105)(93,101)(95,108)(96,98)(97,112)(100,107)(102,115)(103,116)(104,118)(106,117)(109,111)(110,114)(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)(81,84,85,86)(88,89)(90,98,101,94)(91,102,103,113)(92,97)(93,96)(95,104,110,106)(99,115)(100,112,105,109)(107,111)(108,117)(114,118)(116,119)

Polycyclic presentation:

2^8,79|a^2=f,d^2=h,e^2=g,b^a=bd,c^a=ce,d^a=dg,i^a=i^78,d^b=dh,e^b=egh,f^b=fgh,d^c=dgh,e^c=eg,f^c=fg,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, 62002);