Finite Group Databasebeta

C2×ΓL(1,𝔽8)×C22⋊C8 #13054937

order1344
automorphism?
homologyAbelianization (H1) = C22×C3×C8 · Schur multiplier (H2) = C24

Aliases

direct productC2×ΓL(1,𝔽8)×C22⋊C8
unambiguous semidirect product(C2×C7×C22⋊C8)⋊C3

Splittings

Fitting, HallC2×C7×C22⋊C8 ⋊ C3
SylowC7 ⋊ C2×C3×C22⋊C8

Subgroups

subgroupG/H
centerC22×C4C22×ΓL(1,𝔽8)
commutatorC2×C7C22×C3×C8
FrattiniC2×C4C23×ΓL(1,𝔽8)
FittingC2×C7×C22⋊C8C3
socleC23×C7C2×C3×C4
prime radicalC24×ΓL(1,𝔽8)C4
cosocleC2×C4×C7C23×C3
hypercenterC2×C22⋊C8ΓL(1,𝔽8)
hypocenterC7C2×C3×C22⋊C8
LCSG ▷ C2×C7 ▷ C7
UCSC1 ◁ C22×C4 ◁ C2×C22⋊C8

404 conjugacy classes of subgroups; only the 171 normal subgroups are shown.

normal subgroups only

This group has 404 conjugacy classes of subgroups — too many to draw. Only its 171 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) = 224

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

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

Conjugacy classes & character table

200 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1344, 4226);