Finite Group Databasebeta

C9×#3956 #13083785

order1440
automorphism?
homologyAbelianization (H1) = C2×C4×C9 · Schur multiplier (H2) = C2

Aliases

direct productC9×#3956

Splittings

HallC5×C9 ⋊ #101
SylowC5 ⋊ C9×#101

Subgroups

subgroupG/H
centerC2×C9#685
commutatorC22×C5C2×C4×C9
FrattiniC2×C3×C4C2×C3×D5
FittingC5×C9×M16C2
socleC2×C3×C5C3×C22⋊C4
prime radicalC22×C3×C5C2×C3×C4
cosocleC2×C3×C4×C5C22×C3
hypercenterC9×M16D5
hypocenterC5C9×#101
LCSG ▷ C22×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C2×C9 ◁ C2×C4×C9 ◁ C9×M16

114 conjugacy classes of subgroups; only the 57 normal subgroups are shown.

normal subgroups only

This group has 114 conjugacy classes of subgroups — too many to draw. Only its 57 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) = 30
transitive degreeμt(G) = 720

A minimal faithful permutation representation — 2 generators on 30 points:

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

Conjugacy classes & character table

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

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1440, 102);