Finite Group Databasebeta

C2×D219 #11724827

order876
isoclinismisoclinic class of D219
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD438
direct productC2×D219
unambiguous semidirect product(C2×C3)⋊D73
unambiguous semidirect product(C2×C73)⋊D3

Splittings

Fitting, socleC2×C3×C73 ⋊ C2
derived, HallC3×C73 ⋊ C22
SylowC73 ⋊ C2×D3
SylowC3 ⋊ C2×D73

Subgroups

subgroupG/H
center, hypercenterC2D219
commutator, cosocle, hypocenterC3×C73C22
FrattiniC1G
Fitting, socleC2×C3×C73C2
LCSG ▷ C3×C73
UCSC1 ◁ C2

20 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 78
transitive degreeμt(G) = 438

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

Conjugacy classes & character table

222 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#13182117, #13182119, #13182120, …
maximal normal subgroup of#13182117, #13182119, #13182120, …
maximal quotient ofDic438, C4×D219, D876, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(876, 17);