Finite Group Databasebeta

D415 #11718031

order830
isoclinismisoclinic class of D415
automorphismAut(G) order 136120
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD415
unambiguous semidirect productC5⋊D83
unambiguous semidirect productC83⋊D5

Splittings

Fitting, socle, derived, HallC5×C83 ⋊ C2
SylowC83 ⋊ D5
SylowC5 ⋊ D83

Subgroups

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

8 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 88
transitive degreeμt(G) = 415

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

Polycyclic presentation:

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

Conjugacy classes & character table

209 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD5×D83, C2×D415, C3×D415, …
maximal normal subgroup ofD5×D83, C2×D415, C3×D415, …
maximal quotient ofDic415, C2×D415, C3×D415, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(830, 3);