Finite Group Databasebeta
Cayley diagram

C2×D71 #63344

order284
isoclinismisoclinic class of D71
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD142
direct productC2×D71
unambiguous semidirect productC71⋊C22
unambiguous semidirect product(C2×C71)⋊C2

Splittings

Fitting, socleC2×C71 ⋊ C2
derived, SylowC71 ⋊ C22

Subgroups

subgroupG/H
center, hypercenterC2D71
commutator, cosocle, hypocenterC71C22
FrattiniC1G
Fitting, socleC2×C71C2
LCSG ▷ C71
UCSC1 ◁ C2

10 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 73
transitive degreeμt(G) = 142

A minimal faithful permutation representation — 2 generators on 73 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);(4,73)(5,72)(6,71)(7,70)(8,69)(9,68)(10,67)(11,66)(12,65)(13,64)(14,63)(15,62)(16,61)(17,60)(18,59)(19,58)(20,57)(21,56)(22,55)(23,54)(24,53)(25,52)(26,51)(27,50)(28,49)(29,48)(30,47)(31,46)(32,45)(33,44)(34,43)(35,42)(36,41)(37,40)(38,39)

Conjugacy classes & character table

74 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×D71, D284, C22⋊D71, …
maximal normal subgroup ofC4×D71, D284, C22⋊D71, …
maximal quotient ofDic142, C4×D71, D284, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(284, 3);