Finite Group Databasebeta
Cayley diagram

C4⋊(ΓL(1,𝔽8)⋊C4) #66547

order336
isoclinismisoclinic class of ΓL(1,𝔽8)⋊Q8
automorphismAut(G) = #120×AGL(1,𝔽7) (order 1344) · Inn(G) = C2×AGL(1,𝔽7) · Out(G) = C2×D4
homologyAbelianization (H1) = C2×C3×C4 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productC4⋊(ΓL(1,𝔽8)⋊C4)
unambiguous semidirect product(C4⋊Dic7)⋊C3

Splittings

HallC4⋊Dic7 ⋊ C3
HallΓL(1,𝔽8) ⋊ C4⋊C4
SylowC7 ⋊ C3×C4⋊C4

Subgroups

subgroupG/H
center, FrattiniC22C2×AGL(1,𝔽7)
commutatorC2×C7C2×C3×C4
FittingC2×C4×C7C2×C3
socle, cosocleC22×C7C22×C3
prime radicalC22×ΓL(1,𝔽8)C22
hypercenterC2×C4AGL(1,𝔽7)
hypocenterC7C3×C4⋊C4
LCSG ▷ C2×C7 ▷ C7
UCSC1 ◁ C22 ◁ C2×C4

52 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 15
transitive degreeμt(G) = 112

A minimal faithful permutation representation — 2 generators on 15 points:

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

Polycyclic presentation:

2^2,3,2^2,7|a^2=d,b^2=e,b^a=be,f^a=f^6,f^c=f^4

Conjugacy classes & character table

38 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#6381⋊C3, #6382⋊C3, #6390⋊C3, …
maximal normal subgroup of#6381⋊C3, #6382⋊C3, #6390⋊C3, …
maximal quotient ofC4⋊(ΓL(1,𝔽8)⋊C8), #6391⋊C3, #6392⋊C3, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(336, 16);