Finite Group Databasebeta
Cayley diagram

(C7⋊C8)⋊C9 #92575

order504
isoclinismisoclinic class of AGL(1,𝔽7)
automorphismAut(G) = C22×C3×AGL(1,𝔽7) (order 504) · Inn(G) = AGL(1,𝔽7) · Out(G) = C22×C3
homologyAbelianization (H1) = C8×C9 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect product(C7⋊C8)⋊C9
unambiguous semidirect product(C7⋊C9)⋊C8

Splittings

derived, SylowC7 ⋊ C8×C9
HallC7⋊C9 ⋊ C8
HallC7⋊C8 ⋊ C9

Subgroups

subgroupG/H
center, Frattini, hypercenterC3×C4AGL(1,𝔽7)
commutator, hypocenterC7C8×C9
Fitting, cosocleC3×C4×C7C2×C3
socle, prime radicalC2×C3×C7C3×C4
LCSG ▷ C7
UCSC1 ◁ C3×C4

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 504

A minimal faithful permutation representation — 2 generators on 24 points:

(2,6,5,3,4,7)(8,9,10,12,11,13,14,15)(16,17,19,18,20,22,21,23,24);(1,2,5,6,4,7,3)

Polycyclic presentation:

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

Conjugacy classes & character table

84 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC8×D7⋊C9, #1131⋊C9, C2×(C7⋊C8)⋊C9, …
maximal normal subgroup ofC8×D7⋊C9, #1131⋊C9, C2×(C7⋊C8)⋊C9, …
maximal quotient of(C7⋊C9)⋊C16, C2×(C7⋊C8)⋊C9, (C7⋊C8)⋊C27, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(504, 1);