Finite Group Databasebeta
Cayley diagram

C22⋊(C7⋊D7) #87652

order392
isoclinismisoclinic class of #87648
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2×C7

Aliases

unambiguous semidirect productC22⋊(C7⋊D7)

Splittings

FittingC22×C72 ⋊ C2
SylowC72 ⋊ D4

Subgroups

subgroupG/H
center, FrattiniC2C2×C7⋊D7
commutator, socle, cosocleC2×C72C22
FittingC22×C72C2
hypercenterC22C7⋊D7
hypocenterC72D4
LCSG ▷ C2×C72 ▷ C72
UCSC1 ◁ C2 ◁ C22

80 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 196

A minimal faithful permutation representation — 3 generators on 18 points:

(2,4)(12,13,15,17,18,16,14);(1,2)(3,4)(6,7)(8,9)(10,11)(13,14)(15,16)(17,18);(5,6,8,10,11,9,7)

Polycyclic presentation:

2^3,7^2|b^a=bc,d^a=d^6,e^a=e^6

Conjugacy classes & character table

101 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#11716108, D7×C22⋊D7, #11716129, …
maximal normal subgroup of#11716108, D7×C22⋊D7, #11716129, …
maximal quotient of#11716068, #11716070, #11716071, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(392, 32);