Finite Group Databasebeta

C2×D6705 #41001244

order26820
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD13410
direct productC2×D6705
unambiguous semidirect product(C2×C5)⋊D1341
unambiguous semidirect product(C2×C9)⋊D745
unambiguous semidirect product(C2×C149)⋊D45

Splittings

FittingC2×C5×C9×C149 ⋊ C2
derived, HallC5×C9×C149 ⋊ C22
HallC9×C149 ⋊ C2×D5
HallC5×C149 ⋊ C2×D9
SylowC149 ⋊ C2×D45
HallC5×C9 ⋊ C2×D149
SylowC9 ⋊ C2×D745
SylowC5 ⋊ C2×D1341

Subgroups

subgroupG/H
center, hypercenterC2D6705
commutator, cosocle, hypocenterC5×C9×C149C22
FrattiniC3C2×D2235
FittingC2×C5×C9×C149C2
socleC2×C3×C5×C149D3
LCSG ▷ C5×C9×C149
UCSC1 ◁ C2

60 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 165
transitive degreeμt(G) = 13410

A minimal faithful permutation representation — 2 generators on 165 points:

(1,2)(3,4,5,6,7,8,9,10,11)(12,13,14,15,16)(17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165);(4,11)(5,10)(6,9)(7,8)(13,16)(14,15)(18,165)(19,164)(20,163)(21,162)(22,161)(23,160)(24,159)(25,158)(26,157)(27,156)(28,155)(29,154)(30,153)(31,152)(32,151)(33,150)(34,149)(35,148)(36,147)(37,146)(38,145)(39,144)(40,143)(41,142)(42,141)(43,140)(44,139)(45,138)(46,137)(47,136)(48,135)(49,134)(50,133)(51,132)(52,131)(53,130)(54,129)(55,128)(56,127)(57,126)(58,125)(59,124)(60,123)(61,122)(62,121)(63,120)(64,119)(65,118)(66,117)(67,116)(68,115)(69,114)(70,113)(71,112)(72,111)(73,110)(74,109)(75,108)(76,107)(77,106)(78,105)(79,104)(80,103)(81,102)(82,101)(83,100)(84,99)(85,98)(86,97)(87,96)(88,95)(89,94)(90,93)(91,92)

Conjugacy classes & character table

6708 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD26820
maximal normal subgroup ofD26820
maximal quotient ofDic13410, D26820

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(26820, 30);