Finite Group Databasebeta
Cayley diagram

C7⋊#272 #67390

order378
isoclinismisoclinic class of C7⋊#272
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect productC7⋊#272

Splittings

Fitting, derived, HallC7×H(3,𝔽3) ⋊ C2
SylowH(3,𝔽3) ⋊ D7
SylowC7 ⋊ #272

Subgroups

subgroupG/H
center, Frattini, hypercenterC3C3⋊D21
commutator, Fitting, cosocle, hypocenterC7×H(3,𝔽3)C2
socleC3×C7C3⋊D3
LCSG ▷ C7×H(3,𝔽3)
UCSC1 ◁ C3

44 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 3 generators on 16 points:

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

Polycyclic presentation:

2,3^2,7,3|b^a=b^2,c^a=c^2,d^a=d^6,c^b=ce

Conjugacy classes & character table

43 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD7×#272, ((C3⋊D3)⋊C3)⋊D7, C2×C7⋊#272, …
maximal normal subgroup ofD7×#272, ((C3⋊D3)⋊C3)⋊D7, C2×C7⋊#272, …
maximal quotient ofC7⋊#1084, C2×C7⋊#272, C7⋊#4181, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(378, 43);