Finite Group Databasebeta
Cayley diagram

C7⋊#564 #90377

order448
automorphism?
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C24

Aliases

unambiguous semidirect productC7⋊#564

Splittings

SylowC7 ⋊ #564

Subgroups

subgroupG/H
center, FrattiniC22C23×D7
commutator, socle, prime radical, cosocleC22×C7C24
FittingC7×#125C2
hypercenter#125D7
hypocenterC7#564
LCSG ▷ C22×C7 ▷ C7
UCSC1 ◁ C22 ◁ #125

172 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 39
transitive degreeμt(G) = 448

A minimal faithful permutation representation — 4 generators on 39 points:

(1,2,4,6,7,5,3)(9,15)(13,21)(14,23)(20,22)(24,27,28,35)(25,31,30,38)(26,33,32,34)(29,36,37,39);(8,11,12,19)(9,14,15,23)(10,16,17,18)(13,20,21,22)(25,30)(26,32)(31,38)(33,34);(8,10,12,17)(9,13,15,21)(11,18,19,16)(14,22,23,20)(24,26)(25,29)(27,34)(28,32)(30,37)(31,39)(33,35)(36,38);(2,3)(4,5)(6,7)(8,9)(10,13)(11,14)(12,15)(16,20)(17,21)(18,22)(19,23)(24,25,28,30)(26,29,32,37)(27,31,35,38)(33,36,34,39)

Polycyclic presentation:

2^6,7|a^2=f,b^2=e,c^2=e,d^2=f,c^a=cf,d^a=de,g^a=g^6,c^b=cef,d^b=df

Conjugacy classes & character table

61 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#11726129, #11726130, #11726131, …
maximal normal subgroup of#11726129, #11726130, #11726131, …
maximal quotient of#11731606, #11731644, #11731651, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(448, 1139);