Finite Group Databasebeta

C2×D249 #11758596

order996
isoclinismisoclinic class of D249
automorphismAut(G) order 81672
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD498
direct productC2×D249
unambiguous semidirect product(C2×C3)⋊D83
unambiguous semidirect product(C2×C83)⋊D3

Splittings

Fitting, socleC2×C3×C83 ⋊ C2
derived, HallC3×C83 ⋊ C22
SylowC83 ⋊ C2×D3
SylowC3 ⋊ C2×D83

Subgroups

subgroupG/H
center, hypercenterC2D249
commutator, cosocle, hypocenterC3×C83C22
FrattiniC1G
Fitting, socleC2×C3×C83C2
LCSG ▷ C3×C83
UCSC1 ◁ C2

20 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 88
transitive degreeμt(G) = 498

A minimal faithful permutation representation — 2 generators on 88 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);(4,5)(7,88)(8,87)(9,86)(10,85)(11,84)(12,83)(13,82)(14,81)(15,80)(16,79)(17,78)(18,77)(19,76)(20,75)(21,74)(22,73)(23,72)(24,71)(25,70)(26,69)(27,68)(28,67)(29,66)(30,65)(31,64)(32,63)(33,62)(34,61)(35,60)(36,59)(37,58)(38,57)(39,56)(40,55)(41,54)(42,53)(43,52)(44,51)(45,50)(46,49)(47,48)

Conjugacy classes & character table

252 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD249⋊C4, #14521927, #14521928, …
maximal normal subgroup ofD249⋊C4, #14521927, #14521928, …
maximal quotient ofDic498, C4×D249, D996, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(996, 9);