Finite Group Databasebeta

C5×D39⋊D39 #44478274

order30420
automorphism?
homologyAbelianization (H1) = C22×C5 · Schur multiplier (H2) = C2

Aliases

direct productC5×D39⋊D39
unambiguous semidirect productD39⋊(C5×D39)

Splittings

Fitting, socle, HallC32×C5×C132 ⋊ C22
derived, HallC32×C132 ⋊ C22×C5
HallC5×C132 ⋊ D32
SylowC132 ⋊ C5×D32
HallC32×C5 ⋊ D132
SylowC32 ⋊ C5×D132

Subgroups

subgroupG/H
center, hypercenterC5D39⋊D39
commutator, cosocle, hypocenterC32×C132C22×C5
FrattiniC1G
Fitting, socleC32×C5×C132C22
LCSG ▷ C32×C132
UCSC1 ◁ C5

284 conjugacy classes of subgroups; only the 50 normal subgroups are shown.

normal subgroups only

This group has 284 conjugacy classes of subgroups — too many to draw. Only its 50 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 37
transitive degreeμt(G) = 780

A minimal faithful permutation representation — 2 generators on 37 points:

(1,2,3,4,5)(7,8)(9,10,11)(12,13)(14,15)(16,17)(18,19)(20,21)(22,23)(26,27)(28,29)(30,31)(32,33)(34,35)(36,37);(6,7,8)(10,11)(13,14)(15,16)(17,18)(19,20)(21,22)(23,24)(25,26,28,30,32,34,36,37,35,33,31,29,27)

Conjugacy classes & character table

2115 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(30420, 863);