Finite Group Databasebeta
Cayley diagram

D7⋊SL(2,𝔽3) #66666

order336
isoclinismisoclinic class of #66665
automorphismAut(G) = C2×A4×AGL(1,𝔽7) (order 1008) · Inn(G) = D7⋊A4 · Out(G) = C2×C3
homologyAbelianization (H1) = C2×C3 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect productD7⋊SL(2,𝔽3)

Splittings

Fitting, derivedC7×Q8 ⋊ C2×C3
HallQ8×D7 ⋊ C3
SylowC7 ⋊ C2×SL(2,𝔽3)

Subgroups

subgroupG/H
center, Frattini, hypercenterC2D7⋊A4
commutator, Fitting, cosocle, hypocenterC7×Q8C2×C3
socleC2×C7C2×A4
LCSG ▷ C7×Q8
UCSC1 ◁ C2

36 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

19 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×D7⋊SL(2,𝔽3), #10621538, D7⋊(#41⋊C3), …
maximal normal subgroup ofC2×D7⋊SL(2,𝔽3), #10621538, D7⋊(#41⋊C3), …
maximal quotient ofDic7⋊SL(2,𝔽3), C2×D7⋊SL(2,𝔽3), D7⋊(Q8⋊C9), …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(336, 135);