Finite Group Databasebeta

#34176160

order20224
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

FittingC79×M128 ⋊ C2
SylowC79 ⋊ #7541

Subgroups

subgroupG/H
centerC2#23761579
commutatorC32×C79C2×C4
FrattiniC2×C32C2×D79
FittingC79×M128C2
socleC2×C79#1415
prime radicalC2×D2528C2
cosocleC2×C32×C79C22
hypercenterM128D79
hypocenterC79#7541
LCSG ▷ C32×C79 ▷ C16×C79 ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C2×C8 ◁ C2×C16 ◁ C2×C32 ◁ M128

94 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 143
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 2 generators on 143 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)(81,88)(82,95)(83,86)(84,105)(85,106)(89,116)(90,121)(91,120)(92,124)(93,94)(96,108)(97,115)(98,101)(99,135)(100,128)(102,131)(103,110)(104,113)(107,123)(109,114)(111,112)(117,126)(118,122)(119,139)(125,134)(127,140)(129,133)(130,132)(136,142)(137,143)(138,141);(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)(80,81,83,90,87,93,86,111)(82,94,97,121,101,88,100,112)(84,104,102,137,108,117,107,139)(85,109,103,125,110,140,106,92)(89,115,118,95,120,128,141,98)(91,123,122,96,116,131,138,105)(99,134,129,114,136,124,132,127)(113,142,119,133,126,135,143,130)

Polycyclic presentation:

2^8,79|a^2=d,c^2=efh,d^2=h,e^2=fg,f^2=gh,g^2=h,b^a=bc,c^a=ce,e^a=ef,f^a=fg,g^a=gh,i^a=i^78,c^b=ceh,d^b=dh,e^b=ef,f^b=fg,g^b=gh,i^b=i^78

Conjugacy classes & character table

3166 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 57459);