Finite Group Databasebeta
Cayley diagram

D207 #88025

order414
isoclinismisoclinic class of D207
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD207
unambiguous semidirect productC9⋊D23
unambiguous semidirect productC23⋊D9

Splittings

Fitting, derived, HallC9×C23 ⋊ C2
SylowC23 ⋊ D9
SylowC9 ⋊ D23

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC9×C23C2
FrattiniC3D69
socleC3×C23D3
LCSG ▷ C9×C23
UCSC1

12 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 32
transitive degreeμt(G) = 207

A minimal faithful permutation representation — 2 generators on 32 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);(2,9)(3,8)(4,7)(5,6)(11,32)(12,31)(13,30)(14,29)(15,28)(16,27)(17,26)(18,25)(19,24)(20,23)(21,22)

Polycyclic presentation:

2,3,23,3|b^3=d^2,b^a=b^2d,c^a=c^22,d^a=d^2

Conjugacy classes & character table

105 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD9×D23, C2×D207, D621, …
maximal normal subgroup ofD9×D23, C2×D207, C3×D207, …
maximal quotient ofDic207, C2×D207, D621, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(414, 3);