Finite Group Databasebeta

C9×#3940 #13083769

order1440
isoclinismisoclinic class of #686
automorphism?
homologyAbelianization (H1) = C2×C4×C9 · Schur multiplier (H2) = C2

Aliases

direct productC9×#3940

Splittings

HallC5×C9 ⋊ #106
SylowC5 ⋊ C9×#106

Subgroups

subgroupG/H
centerC22×C9C22⋊D5
commutatorC4×C5C2×C4×C9
FrattiniC2×C3×C4C2×C3×D5
FittingC5×C9×C4⋊C4C2
socle, prime radicalC22×C3×C5C3×D4
cosocleC2×C3×C4×C5C22×C3
hypercenterC9×C4⋊C4D5
hypocenterC5C9×#106
LCSG ▷ C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C22×C9 ◁ C2×C4×C9 ◁ C9×C4⋊C4

108 conjugacy classes of subgroups; only the 69 normal subgroups are shown.

normal subgroups only

This group has 108 conjugacy classes of subgroups — too many to draw. Only its 69 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) = 26
transitive degreeμt(G) = 1440

A minimal faithful permutation representation — 2 generators on 26 points:

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

Conjugacy classes & character table

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

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1440, 86);