Finite Group Databasebeta

D8245 #30658096

order16490
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD8245
unambiguous semidirect productC5⋊D1649
unambiguous semidirect productC17⋊D485
unambiguous semidirect productC97⋊D85

Splittings

Fitting, socle, derived, HallC5×C17×C97 ⋊ C2
HallC17×C97 ⋊ D5
HallC5×C97 ⋊ D17
SylowC97 ⋊ D85
HallC5×C17 ⋊ D97
SylowC17 ⋊ D485
SylowC5 ⋊ D1649

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC5×C17×C97C2
LCSG ▷ C5×C17×C97
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 119
transitive degreeμt(G) = 8245

A minimal faithful permutation representation — 2 generators on 119 points:

(1,2,3,4,5)(6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22)(23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119);(2,5)(3,4)(7,22)(8,21)(9,20)(10,19)(11,18)(12,17)(13,16)(14,15)(24,119)(25,118)(26,117)(27,116)(28,115)(29,114)(30,113)(31,112)(32,111)(33,110)(34,109)(35,108)(36,107)(37,106)(38,105)(39,104)(40,103)(41,102)(42,101)(43,100)(44,99)(45,98)(46,97)(47,96)(48,95)(49,94)(50,93)(51,92)(52,91)(53,90)(54,89)(55,88)(56,87)(57,86)(58,85)(59,84)(60,83)(61,82)(62,81)(63,80)(64,79)(65,78)(66,77)(67,76)(68,75)(69,74)(70,73)(71,72)

Polycyclic presentation:

2,5,17,97|b^a=b^4,c^a=c^16,d^a=d^96

Conjugacy classes & character table

4124 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of#45682207, #45682208, #45682211, …
maximal normal subgroup of#45682207, #45682208, #45682211, …
maximal quotient ofDic8245, C2×D8245

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16490, 8);