Finite Group Databasebeta

D4×#4427 #13094418

order1512
automorphism?
homologyAbelianization (H1) = C22×C32 · Schur multiplier (H2) = C2

Aliases

direct productD4×#4427
unambiguous semidirect productC4⋊(C2×#4427)

Splittings

FittingC7×D4×C9 ⋊ C3
HallC7×D4 ⋊ 3−1+2
SylowC7 ⋊ D4×3−1+2

Subgroups

subgroupG/H
center, FrattiniC2×C3C22×C3×ΓL(1,𝔽8)
commutator, socle, cosocleC2×C3×C7C22×C32
FittingC7×D4×C9C3
prime radicalC3×D4×ΓL(1,𝔽8)C3
hypercenterD4×C9ΓL(1,𝔽8)
hypocenterC7D4×3−1+2
LCSG ▷ C2×C3×C7 ▷ C7
UCSC1 ◁ C2×C3 ◁ D4×C9

128 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 252

A minimal faithful permutation representation — 2 generators on 20 points:

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

Conjugacy classes & character table

145 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1512, 315);