Finite Group Databasebeta

D615 #11927615

order1230
isoclinismisoclinic class of D615
automorphismAut(G) order 196800
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD615
unambiguous semidirect productC3⋊D205
unambiguous semidirect productC5⋊D123
unambiguous semidirect productC41⋊D15

Splittings

Fitting, socle, derived, HallC3×C5×C41 ⋊ C2
HallC5×C41 ⋊ D3
HallC3×C41 ⋊ D5
SylowC41 ⋊ D15
HallC3×C5 ⋊ D41
SylowC5 ⋊ D123
SylowC3 ⋊ D205

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C5×C41C2
LCSG ▷ C3×C5×C41
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 49
transitive degreeμt(G) = 615

A minimal faithful permutation representation — 2 generators on 49 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);(2,3)(5,8)(6,7)(10,49)(11,48)(12,47)(13,46)(14,45)(15,44)(16,43)(17,42)(18,41)(19,40)(20,39)(21,38)(22,37)(23,36)(24,35)(25,34)(26,33)(27,32)(28,31)(29,30)

Polycyclic presentation:

2,3,5,41|b^a=b^2,c^a=c^4,d^a=d^40

Conjugacy classes & character table

309 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD15×D41, D5×D123, D3×D205, …
maximal normal subgroup ofD15×D41, D5×D123, D3×D205, …
maximal quotient ofDic615, C2×D615, D1845, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1230, 11);