Finite Group Databasebeta

D553 #11764299

order1106
isoclinismisoclinic class of D553
automorphismAut(G) order 258804
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD553
unambiguous semidirect productC7⋊D79
unambiguous semidirect productC79⋊D7

Splittings

Fitting, socle, derived, HallC7×C79 ⋊ C2
SylowC79 ⋊ D7
SylowC7 ⋊ D79

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC7×C79C2
LCSG ▷ C7×C79
UCSC1

8 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 86
transitive degreeμt(G) = 553

A minimal faithful permutation representation — 2 generators on 86 points:

(1,2,3,4,5,6,7)(8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86);(2,7)(3,6)(4,5)(9,86)(10,85)(11,84)(12,83)(13,82)(14,81)(15,80)(16,79)(17,78)(18,77)(19,76)(20,75)(21,74)(22,73)(23,72)(24,71)(25,70)(26,69)(27,68)(28,67)(29,66)(30,65)(31,64)(32,63)(33,62)(34,61)(35,60)(36,59)(37,58)(38,57)(39,56)(40,55)(41,54)(42,53)(43,52)(44,51)(45,50)(46,49)(47,48)

Polycyclic presentation:

2,7,79|b^a=b^6,c^a=c^78

Conjugacy classes & character table

278 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD7×D79, C2×D553, C3×D553, …
maximal normal subgroup ofD7×D79, C2×D553, C3×D553, …
maximal quotient ofDic553, C2×D553, C3×D553, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1106, 3);