Finite Group Databasebeta

#34181129

order20224
automorphism?
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C22×C4

Aliases

No aliases for this group.

Splittings

FittingC79×#1275 ⋊ C2
SylowC79 ⋊ #8601

Subgroups

subgroupG/H
centerC2×C4#14579118
commutatorC2×C4×C79C22×C8
FrattiniC2×C42C22×D79
FittingC79×#1275C2
socleC22×C79#380
prime radicalC23×D79C4⋊C4
cosocleC2×C42×C79C23
hypercenter#1275D79
hypocenterC79#8601
LCSG ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C2×#97 ◁ #1275

462 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)(88,91)(89,95)(90,99)(92,103)(93,104)(94,107)(96,109)(97,102)(98,110)(100,113)(101,114)(105,117)(106,118)(108,116)(111,112)(115,119);(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)(88,90,92,100,93,101,106,115)(89,94,96,98,97,108,105,111)(91,99,103,113,104,114,118,119)(95,107,109,110,102,116,117,112);(80,81,82,84,83,85,86,87)(88,89)(90,98)(91,102,104,95)(92,105)(93,97)(94,100)(96,106)(99,112,114,110)(101,111)(103,109,118,117)(107,113,116,119)(108,115)

Polycyclic presentation:

2^8,79|a^2=f,b^2=d,d^2=g,f^2=h,b^a=bd,c^a=ce,d^a=dg,e^a=eg,i^b=i^78,f^c=fg,i^c=i^78

Conjugacy classes & character table

1780 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 62428);