Finite Group Databasebeta

D10965 #36346704

order21930
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD10965
unambiguous semidirect productC3⋊D3655
unambiguous semidirect productC5⋊D2193
unambiguous semidirect productC17⋊D645
unambiguous semidirect productC43⋊D255

Splittings

Fitting, socle, derived, HallC3×C5×C17×C43 ⋊ C2
HallC5×C17×C43 ⋊ D3
HallC3×C17×C43 ⋊ D5
HallC17×C43 ⋊ D15
HallC3×C5×C43 ⋊ D17
HallC3×C5×C17 ⋊ D43
HallC5×C43 ⋊ D51
HallC3×C43 ⋊ D85
HallC5×C17 ⋊ D129
HallC3×C17 ⋊ D215
SylowC43 ⋊ D255
SylowC17 ⋊ D645
HallC3×C5 ⋊ D731
SylowC5 ⋊ D2193
SylowC3 ⋊ D3655

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C5×C17×C43C2
LCSG ▷ C3×C5×C17×C43
UCSC1

32 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 68
transitive degreeμt(G) = 10965

A minimal faithful permutation representation — 2 generators on 68 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);(2,3)(5,8)(6,7)(10,25)(11,24)(12,23)(13,22)(14,21)(15,20)(16,19)(17,18)(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:

2,3,5,17,43|b^a=b^2,c^a=c^4,d^a=d^16,e^a=e^42

Conjugacy classes & character table

5484 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(21930, 17);