Finite Group Databasebeta

D427 #11719985

order854
isoclinismisoclinic class of D427
automorphismAut(G) order 153720
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD427
unambiguous semidirect productC7⋊D61
unambiguous semidirect productC61⋊D7

Splittings

Fitting, socle, derived, HallC7×C61 ⋊ C2
SylowC61 ⋊ D7
SylowC7 ⋊ D61

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC7×C61C2
LCSG ▷ C7×C61
UCSC1

8 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 68
transitive degreeμt(G) = 427

A minimal faithful permutation representation — 2 generators on 68 points:

(1,2,3,4,5,6,7)(8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68);(2,7)(3,6)(4,5)(9,68)(10,67)(11,66)(12,65)(13,64)(14,63)(15,62)(16,61)(17,60)(18,59)(19,58)(20,57)(21,56)(22,55)(23,54)(24,53)(25,52)(26,51)(27,50)(28,49)(29,48)(30,47)(31,46)(32,45)(33,44)(34,43)(35,42)(36,41)(37,40)(38,39)

Polycyclic presentation:

2,7,61|b^a=b^6,c^a=c^60

Conjugacy classes & character table

215 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD7×D61, C2×D427, C3×D427, …
maximal normal subgroup ofD7×D61, C2×D427, C3×D427, …
maximal quotient ofDic427, C2×D427, C3×D427, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(854, 3);