Finite Group Databasebeta

D1953 #16840874

order3906
automorphismAut(G) order 2109240
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD1953
unambiguous semidirect productC7⋊D279
unambiguous semidirect productC9⋊D217
unambiguous semidirect productC31⋊D63

Splittings

Fitting, derived, HallC7×C9×C31 ⋊ C2
HallC9×C31 ⋊ D7
HallC7×C31 ⋊ D9
HallC7×C9 ⋊ D31
SylowC31 ⋊ D63
SylowC9 ⋊ D217
SylowC7 ⋊ D279

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC7×C9×C31C2
FrattiniC3D651
socleC3×C7×C31D3
LCSG ▷ C7×C9×C31
UCSC1

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 47
transitive degreeμt(G) = 1953

A minimal faithful permutation representation — 2 generators on 47 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);(2,9)(3,8)(4,7)(5,6)(11,16)(12,15)(13,14)(18,47)(19,46)(20,45)(21,44)(22,43)(23,42)(24,41)(25,40)(26,39)(27,38)(28,37)(29,36)(30,35)(31,34)(32,33)

Polycyclic presentation:

2,3,7,31,3|b^3=e^2,b^a=b^2e,c^a=c^6,d^a=d^30,e^a=e^2

Conjugacy classes & character table

978 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC5×D1953, D9765, C7⋊(C9⋊(D31⋊C5)), …
maximal normal subgroup ofC5×D1953, C7⋊(C9⋊(D31⋊C5)), C7×D1953
maximal quotient ofC5×D1953, D9765, D13671, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(3906, 24);