Finite Group Databasebeta
Cayley diagram

D7×D8 #6473

order224
automorphismAut(G) = C2×AGL(1,ℤ/8)×AGL(1,𝔽7) (order 2688) · Inn(G) = D4×D7 · Out(G) = C23×C3
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C23

Aliases

direct productD7×D8

Splittings

FittingC7×D8 ⋊ C2
SylowC7 ⋊ C2×D8

Subgroups

subgroupG/H
centerC2D4×D7
commutator, cosocleC4×C7C23
FrattiniC4C22×D7
FittingC7×D8C2
socleC2×C7C2×D4
hypercenterD8D7
hypocenterC7C2×D8
LCSG ▷ C4×C7 ▷ C2×C7 ▷ C7
UCSC1 ◁ C2 ◁ C4 ◁ D8

76 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 15
transitive degreeμt(G) = 56

A minimal faithful permutation representation — 3 generators on 15 points:

(2,5)(3,8)(6,7)(9,10,12,14,15,13,11);(1,2)(3,5)(4,7)(6,8);(10,11)(12,13)(14,15)

Conjugacy classes & character table

35 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD7×D16, #89683, D7×SD32, …
maximal normal subgroup ofD7×D16, #89683, D7×SD32, …
maximal quotient of#89528, #89531, #89532, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(224, 105);