Finite Group Databasebeta

D321 #10619463

order642
isoclinismisoclinic class of D321
automorphismAut(G) order 68052
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD321
unambiguous semidirect productC3⋊D107
unambiguous semidirect productC107⋊D3

Splittings

Fitting, socle, derived, HallC3×C107 ⋊ C2
SylowC107 ⋊ D3
SylowC3 ⋊ D107

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C107C2
LCSG ▷ C3×C107
UCSC1

8 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 110
transitive degreeμt(G) = 321

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

Polycyclic presentation:

2,3,107|b^a=b^2,c^a=c^106

Conjugacy classes & character table

162 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD3×D107, C2×D321, D963, …
maximal normal subgroup ofD3×D107, C2×D321, C3×D321, …
maximal quotient ofDic321, C2×D321, D963, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(642, 3);