Finite Group Databasebeta

D756 #13094139

order1512
automorphismAut(G) order 163296
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD756
unambiguous semidirect productC4⋊D189

Splittings

FittingC4×C7×C27 ⋊ C2
HallC7×C27 ⋊ D4
SylowC27 ⋊ D28
SylowC7 ⋊ D108

Subgroups

subgroupG/H
centerC2C2×D189
commutator, cosocleC2×C7×C27C22
FrattiniC2×C9C2×D21
FittingC4×C7×C27C2
socleC2×C3×C7C2×D9
hypercenterC4D189
hypocenterC7×C27D4
LCSG ▷ C2×C7×C27 ▷ C7×C27
UCSC1 ◁ C2 ◁ C4

64 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 38
transitive degreeμt(G) = 756

A minimal faithful permutation representation — 2 generators on 38 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);(2,4)(6,31)(7,30)(8,29)(9,28)(10,27)(11,26)(12,25)(13,24)(14,23)(15,22)(16,21)(17,20)(18,19)(33,38)(34,37)(35,36)

Polycyclic presentation:

2^3,3,7,3^2|b^2=c,d^3=f,f^3=g,b^a=bc,d^a=d^2f^2g^2,e^a=e^6,f^a=f^2g^2,g^a=g^2

Conjugacy classes & character table

381 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD1512, D2268, D3780, …
maximal normal subgroup ofD1512
maximal quotient ofD1512, D2268, Dic756, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1512, 36);