Finite Group Databasebeta
Cayley diagram

C22⋊(C7⋊C8) #6404

order224
isoclinismisoclinic class of Dic14
automorphismAut(G) = C2×#120×AGL(1,𝔽7) (order 2688) · Inn(G) = C2×D7 · Out(G) = C22×C3×D4
homologyAbelianization (H1) = C2×C8 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect productC22⋊(C7⋊C8)

Splittings

SylowC7 ⋊ C22⋊C8

Subgroups

subgroupG/H
center, FrattiniC2×C4C2×D7
commutatorC2×C7C2×C8
FittingC22×C4×C7C2
socleC22×C7C2×C4
prime radicalC23×C7C4
cosocleC2×C4×C7C22
hypercenterC22×C4D7
hypocenterC7C22⋊C8
LCSG ▷ C2×C7 ▷ C7
UCSC1 ◁ C2×C4 ◁ C22×C4

50 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 19
transitive degreeμt(G) = 112

A minimal faithful permutation representation — 2 generators on 19 points:

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

Polycyclic presentation:

2^5,7|a^2=c,c^2=e,b^a=bd,f^a=f^6

Conjugacy classes & character table

68 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#89246, #89247, #89263, …
maximal normal subgroup of#89246, #89247, #89263, …
maximal quotient of#89319, #89320, #89323, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(224, 36);