Finite Group Databasebeta

D9545 #34061826

order19090
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD9545
unambiguous semidirect productC5⋊D1909
unambiguous semidirect productC23⋊D415
unambiguous semidirect productC83⋊D115

Splittings

Fitting, socle, derived, HallC5×C23×C83 ⋊ C2
HallC23×C83 ⋊ D5
HallC5×C83 ⋊ D23
HallC5×C23 ⋊ D83
SylowC83 ⋊ D115
SylowC23 ⋊ D415
SylowC5 ⋊ D1909

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC5×C23×C83C2
LCSG ▷ C5×C23×C83
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 111
transitive degreeμt(G) = 9545

A minimal faithful permutation representation — 2 generators on 111 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)(29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111);(2,5)(3,4)(7,28)(8,27)(9,26)(10,25)(11,24)(12,23)(13,22)(14,21)(15,20)(16,19)(17,18)(30,111)(31,110)(32,109)(33,108)(34,107)(35,106)(36,105)(37,104)(38,103)(39,102)(40,101)(41,100)(42,99)(43,98)(44,97)(45,96)(46,95)(47,94)(48,93)(49,92)(50,91)(51,90)(52,89)(53,88)(54,87)(55,86)(56,85)(57,84)(58,83)(59,82)(60,81)(61,80)(62,79)(63,78)(64,77)(65,76)(66,75)(67,74)(68,73)(69,72)(70,71)

Polycyclic presentation:

2,5,23,83|b^a=b^4,c^a=c^22,d^a=d^82

Conjugacy classes & character table

4774 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD83×D115, D23×D415, D5×D1909, …
maximal normal subgroup ofD83×D115, D23×D415, D5×D1909, …
maximal quotient ofDic9545, C2×D9545

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(19090, 8);