Finite Group Databasebeta

D5×#72209831 #72253740

order15360
automorphism?
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C25

Aliases

direct productD5×#72209831

Splittings

FittingC5×#6499874 ⋊ C2×C3
derivedC5×#62817 ⋊ C22×C3
HallD5×#6499874 ⋊ C3
SylowC5 ⋊ C2×#72209831

Subgroups

subgroupG/H
centerC2D5×#35346⋊C3
commutator, cosocle, hypocenterC5×#62817C22×C3
FrattiniC24C2×D5×C22⋊A4
FittingC5×#6499874C2×C3
socleC2×C5C2×#35346⋊C3
hypercenterC22D5×#85645
LCSG ▷ C5×#62817
UCSC1 ◁ C2 ◁ C22

At least 12852 conjugacy classes of subgroups; only the 93 normal subgroups are shown.

normal subgroups only

This group has at least 12852 conjugacy classes of subgroups — too many to draw. Only its 93 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) = 21
transitive degreeμt(G) = 80

A minimal faithful permutation representation — 3 generators on 21 points:

(2,3)(4,5)(8,9,14)(11,12,17)(15,16,20)(18,19,21);(1,2,4,5,3)(6,7,10,13)(8,18)(9,19)(11,15)(12,16)(14,17,20,21);(6,14)(7,17)(8,9)(10,20)(11,12)(13,21)(15,16)(18,19)

Conjugacy classes & character table

144 conjugacy classes — view the full character table.

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from a minimal faithful permutation representation:

gap> G := Group((2,3)(4,5)(8,9,14)(11,12,17)(15,16,20)(18,19,21), (1,2,4,5,3)(6,7,10,13)(8,18)(9,19)(11,15)(12,16)(14,17,20,21), (6,14)(7,17)(8,9)(10,20)(11,12)(13,21)(15,16)(18,19));