Finite Group Databasebeta
Cayley diagram

D4×D7 #1158

order112
automorphismAut(G) = C2×D4×AGL(1,𝔽7) (order 672) · Inn(G) = C22×D7 · Out(G) = C22×C3
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C23

Aliases

direct productD4×D7

Splittings

FittingC7×D4 ⋊ C2
SylowC7 ⋊ C2×D4

Subgroups

subgroupG/H
center, FrattiniC2C22×D7
commutator, socle, cosocleC2×C7C23
FittingC7×D4C2
hypercenterD4D7
hypocenterC7C2×D4
LCSG ▷ C2×C7 ▷ C7
UCSC1 ◁ C2 ◁ D4

54 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 11
transitive degreeμt(G) = 28

A minimal faithful permutation representation — 3 generators on 11 points:

(2,3)(4,5)(6,7);(1,2,4,6,7,5,3)(9,11);(8,9)(10,11)

Conjugacy classes & character table

25 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD7×D8, #6474, D7×SD16, …
maximal normal subgroup ofD7×D8, #6474, D7×SD16, …
maximal quotient of#6441, D7×C22⋊C4, (C22⋊D7)⋊C4, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(112, 31);