Finite Group Databasebeta

D9425 #34038124

order18850
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD9425
unambiguous semidirect productC13⋊D725
unambiguous semidirect productC25⋊D377
unambiguous semidirect productC29⋊D325

Splittings

Fitting, derived, HallC13×C25×C29 ⋊ C2
HallC25×C29 ⋊ D13
HallC13×C29 ⋊ D25
HallC13×C25 ⋊ D29
SylowC29 ⋊ D325
SylowC25 ⋊ D377
SylowC13 ⋊ D725

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC13×C25×C29C2
FrattiniC5D1885
socleC5×C13×C29D5
LCSG ▷ C13×C25×C29
UCSC1

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 67
transitive degreeμt(G) = 9425

A minimal faithful permutation representation — 2 generators on 67 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);(2,25)(3,24)(4,23)(5,22)(6,21)(7,20)(8,19)(9,18)(10,17)(11,16)(12,15)(13,14)(27,38)(28,37)(29,36)(30,35)(31,34)(32,33)(40,67)(41,66)(42,65)(43,64)(44,63)(45,62)(46,61)(47,60)(48,59)(49,58)(50,57)(51,56)(52,55)(53,54)

Polycyclic presentation:

2,5,13,29,5|b^5=e^4,b^a=b^4e,c^a=c^12,d^a=d^28,e^a=e^4

Conjugacy classes & character table

4714 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of#49179370, #49179371, #49179374, …
maximal normal subgroup of#49179370, #49179371, #49179374, …
maximal quotient ofDic9425, C2×D9425, D28275

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(18850, 8);