Finite Group Databasebeta

C2×D7865 #44538106

order31460
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD15730
direct productC2×D7865
unambiguous semidirect product(C2×C5)⋊D1573
unambiguous semidirect product(C2×C13)⋊D605
unambiguous semidirect product(C2×C121)⋊D65

Splittings

FittingC2×C5×C13×C121 ⋊ C2
derived, HallC5×C13×C121 ⋊ C22
HallC13×C121 ⋊ C2×D5
HallC5×C121 ⋊ C2×D13
SylowC121 ⋊ C2×D65
HallC5×C13 ⋊ C2×D121
SylowC13 ⋊ C2×D605
SylowC5 ⋊ C2×D1573

Subgroups

subgroupG/H
center, hypercenterC2D7865
commutator, cosocle, hypocenterC5×C13×C121C22
FrattiniC11C2×D715
FittingC2×C5×C13×C121C2
socleC2×C5×C11×C13D11
LCSG ▷ C5×C13×C121
UCSC1 ◁ C2

60 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 141
transitive degreeμt(G) = 15730

A minimal faithful permutation representation — 2 generators on 141 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);(4,7)(5,6)(9,128)(10,127)(11,126)(12,125)(13,124)(14,123)(15,122)(16,121)(17,120)(18,119)(19,118)(20,117)(21,116)(22,115)(23,114)(24,113)(25,112)(26,111)(27,110)(28,109)(29,108)(30,107)(31,106)(32,105)(33,104)(34,103)(35,102)(36,101)(37,100)(38,99)(39,98)(40,97)(41,96)(42,95)(43,94)(44,93)(45,92)(46,91)(47,90)(48,89)(49,88)(50,87)(51,86)(52,85)(53,84)(54,83)(55,82)(56,81)(57,80)(58,79)(59,78)(60,77)(61,76)(62,75)(63,74)(64,73)(65,72)(66,71)(67,70)(68,69)(130,141)(131,140)(132,139)(133,138)(134,137)(135,136)

Conjugacy classes & character table

7868 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD31460
maximal normal subgroup ofD31460
maximal quotient ofDic15730, D31460

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(31460, 46);