Finite Group Databasebeta

D1955 #16840938

order3910
automorphismAut(G) order 2752640
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD1955
unambiguous semidirect productC5⋊D391
unambiguous semidirect productC17⋊D115
unambiguous semidirect productC23⋊D85

Splittings

Fitting, socle, derived, HallC5×C17×C23 ⋊ C2
HallC17×C23 ⋊ D5
HallC5×C23 ⋊ D17
HallC5×C17 ⋊ D23
SylowC23 ⋊ D85
SylowC17 ⋊ D115
SylowC5 ⋊ D391

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC5×C17×C23C2
LCSG ▷ C5×C17×C23
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 45
transitive degreeμt(G) = 1955

A minimal faithful permutation representation — 2 generators on 45 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);(2,5)(3,4)(7,22)(8,21)(9,20)(10,19)(11,18)(12,17)(13,16)(14,15)(24,45)(25,44)(26,43)(27,42)(28,41)(29,40)(30,39)(31,38)(32,37)(33,36)(34,35)

Polycyclic presentation:

2,5,17,23|b^a=b^4,c^a=c^16,d^a=d^22

Conjugacy classes & character table

979 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC3×D1955, D5865, D9775, …
maximal normal subgroup ofC3×D1955, C5×D1955, C7×D1955
maximal quotient ofC3×D1955, D5865, D9775, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(3910, 8);