Finite Group Databasebeta
Cayley diagram

D3×AGL(1,𝔽7) #6987

order252
isoclinismisoclinic class of D3×AGL(1,𝔽7)
automorphismAut(G) = D3×AGL(1,𝔽7) (order 252) · Inn(G) = G · Out(G) = C1
homologyAbelianization (H1) = C22×C3 · Schur multiplier (H2) = C2

Aliases

direct productD3×AGL(1,𝔽7)
unambiguous semidirect productD7⋊(C3×D3)
unambiguous semidirect product(D3×D7)⋊C3
unambiguous semidirect product(C3×AGL(1,𝔽7))⋊C2
unambiguous semidirect product(D3×ΓL(1,𝔽8))⋊C2
unambiguous semidirect product(C3⋊AGL(1,𝔽7))⋊C2

Splittings

Fitting, socle, derivedC3×C7 ⋊ C22×C3
HallC3×ΓL(1,𝔽8) ⋊ C22
SylowC7 ⋊ C2×C3×D3

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC3×C7C22×C3
LCSG ▷ C3×C7
UCSC1

44 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 10
transitive degreeμt(G) = 21

A minimal faithful permutation representation — 2 generators on 10 points:

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

Conjugacy classes & character table

21 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×D3×AGL(1,𝔽7), #67356⋊C2, #67355⋊C2, …
maximal normal subgroup ofC2×D3×AGL(1,𝔽7), C3×D3×AGL(1,𝔽7), C5×D3×AGL(1,𝔽7), …
maximal quotient ofDic3×AGL(1,𝔽7), D3×ΓL(1,𝔽8)⋊C4, (C3⋊AGL(1,𝔽7))⋊C4, …
automorphism group ofD21, C3×ΓL(1,𝔽8), D3×D7, …
holomorph ofC3×C7

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(252, 26);