Finite Group Databasebeta

C2×D4×C7⋊C9 #11759003

order1008
automorphism?
homologyAbelianization (H1) = C23×C9 · Schur multiplier (H2) = C23

Aliases

direct productC2×D4×C7⋊C9
unambiguous semidirect productC4⋊(C22×C7⋊C9)
unambiguous semidirect product(C2×C7×D4)⋊C9

Splittings

HallC2×C7×D4 ⋊ C9
SylowC7 ⋊ C2×D4×C9

Subgroups

subgroupG/H
centerC22×C3C22×ΓL(1,𝔽8)
commutatorC2×C7C23×C9
FrattiniC2×C3C23×ΓL(1,𝔽8)
Fitting, prime radicalC2×C3×C7×D4C3
socleC22×C3×C7C22×C3
cosocleC2×C3×C7C23×C3
hypercenterC2×C3×D4ΓL(1,𝔽8)
hypocenterC7C2×D4×C9
LCSG ▷ C2×C7 ▷ C7
UCSC1 ◁ C22×C3 ◁ C2×C3×D4

162 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 504

A minimal faithful permutation representation — 3 generators on 22 points:

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

Conjugacy classes & character table

150 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1008, 174);