Finite Group Databasebeta

C9×C4⋊#168 #13083765

order1440
isoclinismisoclinic class of Dic10
automorphism?
homologyAbelianization (H1) = C2×C8×C9 · Schur multiplier (H2) = C2

Aliases

direct productC9×C4⋊#168
unambiguous semidirect productC4⋊(C9×#168)

Splittings

HallC5×C9 ⋊ C4⋊C8
SylowC5 ⋊ C9×C4⋊C8

Subgroups

subgroupG/H
centerC2×C4×C9C2×D5
commutatorC2×C5C2×C8×C9
FrattiniC2×C3×C4C2×C3×D5
FittingC42×C5×C9C2
socle, prime radicalC22×C3×C5C2×C3×C4
cosocleC2×C3×C4×C5C22×C3
hypercenterC42×C9D5
hypocenterC5C9×C4⋊C8
LCSG ▷ C2×C5 ▷ C5
UCSC1 ◁ C2×C4×C9 ◁ C42×C9

114 conjugacy classes of subgroups.

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);(11,12)(13,14)(16,18)(19,20,21,23,22,24,25,26)

Conjugacy classes & character table

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

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1440, 82);