Finite Group Databasebeta

C2×#20265786 #27184497

order12928
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#20265786

Splittings

FittingC2×#125×C101 ⋊ C2
SylowC101 ⋊ C2×#541

Subgroups

subgroupG/H
centerC23C23×D101
commutator, cosocleC22×C101C25
FrattiniC22C24×D101
FittingC2×#125×C101C2
socleC23×C101C24
prime radicalC23×D101C23
hypercenterC2×#125D101
hypocenterC101C2×#541
LCSG ▷ C22×C101 ▷ C101
UCSC1 ◁ C23 ◁ C2×#125

1004 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 127
transitive degreeμt(G) = 6464

A minimal faithful permutation representation — 5 generators on 127 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)(112,115,116,124)(113,118,119,123)(114,122,121,127)(117,125,120,126);(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)(105,109)(108,111)(114,121)(117,120)(122,127)(125,126);(104,106,107,110)(105,108,109,111)(112,114)(113,117)(115,122)(116,121)(118,125)(119,120)(123,126)(124,127);(104,105)(106,108)(107,109)(110,111)(112,113,116,119)(114,120,121,117)(115,123,124,118)(122,125,127,126);(102,103)

Conjugacy classes & character table

1444 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(12928, 17875);