Finite Group Databasebeta

C2×D435 #13181981

order1740
isoclinismisoclinic class of D435
automorphismAut(G) order 194880
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD870
direct productC2×D435
unambiguous semidirect product(C2×C3)⋊D145
unambiguous semidirect product(C2×C5)⋊D87
unambiguous semidirect product(C2×C29)⋊D15

Splittings

Fitting, socleC2×C3×C5×C29 ⋊ C2
derived, HallC3×C5×C29 ⋊ C22
HallC5×C29 ⋊ C2×D3
HallC3×C29 ⋊ C2×D5
SylowC29 ⋊ C2×D15
HallC3×C5 ⋊ C2×D29
SylowC5 ⋊ C2×D87
SylowC3 ⋊ C2×D145

Subgroups

subgroupG/H
center, hypercenterC2D435
commutator, cosocle, hypocenterC3×C5×C29C22
FrattiniC1G
Fitting, socleC2×C3×C5×C29C2
LCSG ▷ C3×C5×C29
UCSC1 ◁ C2

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 39
transitive degreeμt(G) = 870

A minimal faithful permutation representation — 2 generators on 39 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);(4,5)(7,10)(8,9)(12,39)(13,38)(14,37)(15,36)(16,35)(17,34)(18,33)(19,32)(20,31)(21,30)(22,29)(23,28)(24,27)(25,26)

Conjugacy classes & character table

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

Relationships

maximal subgroup ofD11×D435, C2×D4785, C2×C11×D435, …
maximal normal subgroup ofC2×C11×D435, C2×C13×D435, C2×C17×D435, …
maximal quotient ofD11×D435, C2×D4785, C2×C11×D435, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1740, 36);