Finite Group Databasebeta

D975 #14519601

order1950
isoclinismisoclinic class of D975
automorphismAut(G) order 468000
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD975
unambiguous semidirect productC3⋊D325
unambiguous semidirect productC13⋊D75
unambiguous semidirect productC25⋊D39

Splittings

Fitting, derived, HallC3×C13×C25 ⋊ C2
HallC13×C25 ⋊ D3
HallC3×C25 ⋊ D13
HallC3×C13 ⋊ D25
SylowC25 ⋊ D39
SylowC13 ⋊ D75
SylowC3 ⋊ D325

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC3×C13×C25C2
FrattiniC5D195
socleC3×C5×C13D5
LCSG ▷ C3×C13×C25
UCSC1

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 41
transitive degreeμt(G) = 975

A minimal faithful permutation representation — 2 generators on 41 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);(2,3)(5,28)(6,27)(7,26)(8,25)(9,24)(10,23)(11,22)(12,21)(13,20)(14,19)(15,18)(16,17)(30,41)(31,40)(32,39)(33,38)(34,37)(35,36)

Polycyclic presentation:

2,3,5,13,5|c^5=e^4,b^a=b^2,c^a=c^4e,d^a=d^12,e^a=e^4

Conjugacy classes & character table

489 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD13×D75, D25×D39, D3×D325, …
maximal normal subgroup ofD13×D75, D25×D39, D3×D325, …
maximal quotient ofDic975, C2×D975, C7×D975, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1950, 11);