Finite Group Databasebeta

C2×D7931 #44540588

order31724
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD15862
direct productC2×D7931
unambiguous semidirect product(C2×C7)⋊D1133
unambiguous semidirect product(C2×C11)⋊D721
unambiguous semidirect product(C2×C103)⋊D77

Splittings

Fitting, socleC2×C7×C11×C103 ⋊ C2
derived, HallC7×C11×C103 ⋊ C22
HallC11×C103 ⋊ C2×D7
HallC7×C103 ⋊ C2×D11
SylowC103 ⋊ C2×D77
HallC7×C11 ⋊ C2×D103
SylowC11 ⋊ C2×D721
SylowC7 ⋊ C2×D1133

Subgroups

subgroupG/H
center, hypercenterC2D7931
commutator, cosocle, hypocenterC7×C11×C103C22
FrattiniC1G
Fitting, socleC2×C7×C11×C103C2
LCSG ▷ C7×C11×C103
UCSC1 ◁ C2

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 123
transitive degreeμt(G) = 15862

A minimal faithful permutation representation — 2 generators on 123 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);(4,9)(5,8)(6,7)(11,20)(12,19)(13,18)(14,17)(15,16)(22,123)(23,122)(24,121)(25,120)(26,119)(27,118)(28,117)(29,116)(30,115)(31,114)(32,113)(33,112)(34,111)(35,110)(36,109)(37,108)(38,107)(39,106)(40,105)(41,104)(42,103)(43,102)(44,101)(45,100)(46,99)(47,98)(48,97)(49,96)(50,95)(51,94)(52,93)(53,92)(54,91)(55,90)(56,89)(57,88)(58,87)(59,86)(60,85)(61,84)(62,83)(63,82)(64,81)(65,80)(66,79)(67,78)(68,77)(69,76)(70,75)(71,74)(72,73)

Conjugacy classes & character table

7934 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD31724
maximal normal subgroup ofD31724
maximal quotient ofDic15862, D31724

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(31724, 23);