Finite Group Databasebeta

(C19⋊C3)⋊D247 #43245172

order28158
automorphism?
homologyAbelianization (H1) = C2×C3 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect product(C19⋊C3)⋊D247

Splittings

Fitting, socle, derived, HallC13×C192 ⋊ C2×C3
HallC13×C19×C19⋊C3 ⋊ C2
HallC13⋊(C19⋊D19) ⋊ C3
HallC19×C19⋊C3 ⋊ D13
SylowC192 ⋊ C3×D13
SylowC13 ⋊ (C19⋊C3)⋊D19

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC13×C192C2×C3
LCSG ▷ C13×C192
UCSC1

56 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 51
transitive degreeμt(G) = 741

A minimal faithful permutation representation — 2 generators on 51 points:

(2,3)(4,5)(6,7)(8,9)(10,11)(12,13)(15,19,20,16,17,21)(18,27,24,22,23,29)(25,30,32,31,28,26)(34,35)(36,37)(38,39)(40,41)(42,43)(44,45)(46,47)(48,49)(50,51);(1,2,4,6,8,10,12,13,11,9,7,5,3)(14,15,18,24,30,27,31,17,21,26,32,20,19,25,23,28,29,22,16)(33,34,36,38,40,42,44,46,48,50,51,49,47,45,43,41,39,37,35)

Polycyclic presentation:

2,3,13,19^2|c^a=c^12,d^a=d^18,e^a=e^18,d^b=d^7

Conjugacy classes & character table

1116 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(28158, 73);