Finite Group Databasebeta

D8385 #30680796

order16770
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD8385
unambiguous semidirect productC3⋊D2795
unambiguous semidirect productC5⋊D1677
unambiguous semidirect productC13⋊D645
unambiguous semidirect productC43⋊D195

Splittings

Fitting, socle, derived, HallC3×C5×C13×C43 ⋊ C2
HallC5×C13×C43 ⋊ D3
HallC3×C13×C43 ⋊ D5
HallC3×C5×C43 ⋊ D13
HallC13×C43 ⋊ D15
HallC5×C43 ⋊ D39
HallC3×C5×C13 ⋊ D43
HallC3×C43 ⋊ D65
HallC5×C13 ⋊ D129
SylowC43 ⋊ D195
HallC3×C13 ⋊ D215
HallC3×C5 ⋊ D559
SylowC13 ⋊ D645
SylowC5 ⋊ D1677
SylowC3 ⋊ D2795

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C5×C13×C43C2
LCSG ▷ C3×C5×C13×C43
UCSC1

32 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 64
transitive degreeμt(G) = 8385

A minimal faithful permutation representation — 2 generators on 64 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);(2,3)(5,8)(6,7)(10,21)(11,20)(12,19)(13,18)(14,17)(15,16)(23,64)(24,63)(25,62)(26,61)(27,60)(28,59)(29,58)(30,57)(31,56)(32,55)(33,54)(34,53)(35,52)(36,51)(37,50)(38,49)(39,48)(40,47)(41,46)(42,45)(43,44)

Polycyclic presentation:

2,3,5,13,43|b^a=b^2,c^a=c^4,d^a=d^12,e^a=e^42

Conjugacy classes & character table

4194 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD43×D195, D13×D645, D15×D559, …
maximal normal subgroup ofD43×D195, D13×D645, D15×D559, …
maximal quotient ofDic8385, C2×D8385, D25155

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16770, 20);