Finite Group Databasebeta
Cayley diagram

#4430⋊C2 #67358

order378
isoclinismisoclinic class of #67355
automorphismAut(G) = H(3,𝔽3)×AGL(1,𝔽7) (order 1134) · Inn(G) = C3×AGL(1,𝔽7) · Out(G) = C32
homologyAbelianization (H1) = C2×C32 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect product#4430⋊C2

Splittings

Hall#4430 ⋊ C2
HallD7 ⋊ 3−1+2
SylowC7 ⋊ C2×3−1+2

Subgroups

subgroupG/H
center, FrattiniC3C3×AGL(1,𝔽7)
commutator, socle, cosocleC3×C7C2×C32
FittingC32×C7C2×C3
prime radicalC32×D7C3
hypercenterC32AGL(1,𝔽7)
hypocenterC7C2×3−1+2
LCSG ▷ C3×C7 ▷ C7
UCSC1 ◁ C3 ◁ C32

32 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 16
transitive degreeμt(G) = 63

A minimal faithful permutation representation — 2 generators on 16 points:

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

Polycyclic presentation:

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

Conjugacy classes & character table

31 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#4430⋊C2, #11765586, #10588039⋊C2, …
maximal normal subgroup ofC2×#4430⋊C2, #11765586, #10588039⋊C2, …
maximal quotient of#4430⋊C4, C2×#4430⋊C2, (D7⋊C9)⋊C9, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(378, 11);