Finite Group Databasebeta

#34108617

order20096
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

No aliases for this group.

Splittings

Fitting#413×C157 ⋊ C2
SylowC157 ⋊ #2889

Subgroups

subgroupG/H
centerC2C2×C22⋊C4×D157
commutatorC22×C157C23×C4
FrattiniC2×C4C23×D157
Fitting#413×C157C2
socleC2×C157C22×C22⋊C4
prime radicalC2×#19097818C2
cosocleC2×C4×C157C24
hypercenter#413D157
hypocenterC157#2889
LCSG ▷ C22×C157 ▷ C2×C157 ▷ C157
UCSC1 ◁ C2 ◁ C22×C4 ◁ #413

704 conjugacy classes of subgroups; only the 209 normal subgroups are shown.

normal subgroups only

This group has 704 conjugacy classes of subgroups — too many to draw. Only its 209 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 189
transitive degreeμt(G) = 5024

A minimal faithful permutation representation — 4 generators on 189 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)(79,80)(81,82)(83,84)(85,86)(87,88)(89,90)(91,92)(93,94)(95,96)(97,98)(99,100)(101,102)(103,104)(105,106)(107,108)(109,110)(111,112)(113,114)(115,116)(117,118)(119,120)(121,122)(123,124)(125,126)(127,128)(129,130)(131,132)(133,134)(135,136)(137,138)(139,140)(141,142)(143,144)(145,146)(147,148)(149,150)(151,152)(153,154)(155,156)(161,172)(165,178)(169,183)(173,185)(176,182)(179,188)(184,186)(187,189);(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)(82,83)(84,85)(86,87)(88,89)(90,91)(92,93)(94,95)(96,97)(98,99)(100,101)(102,103)(104,105)(106,107)(108,109)(110,111)(112,113)(114,115)(116,117)(118,119)(120,121)(122,123)(124,125)(126,127)(128,129)(130,131)(132,133)(134,135)(136,137)(138,139)(140,141)(142,143)(144,145)(146,147)(148,149)(150,151)(152,153)(154,155)(156,157)(158,161)(159,165)(160,169)(162,173)(163,172)(164,176)(166,178)(167,179)(168,182)(170,184)(171,183)(174,186)(175,185)(177,187)(180,188)(181,189);(158,160,163,171)(159,164,166,168)(161,169,172,183)(162,174,175,170)(165,176,178,182)(167,181,180,177)(173,186,185,184)(179,189,188,187);(158,159,162,167,163,166,175,180)(160,168,170,181,171,164,174,177)(161,165,173,179,172,178,185,188)(169,182,184,189,183,176,186,187)

Polycyclic presentation:

2^7,157|a^2=f,b^2=g,f^2=g,b^a=be,e^a=eg,f^b=fg,d^c=dg,h^c=h^156,h^d=h^156

Conjugacy classes & character table

1757 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20096, 12991);