Finite Group Databasebeta

C5×#18665 #11941385

order1280
nilpotency class3
isoclinismisoclinic class of #18618
automorphism?
homologyAbelianization (H1) = C24×C5 · Schur multiplier (H2) = C25

Aliases

direct productC5×#18665

Subgroups

subgroupG/H
center, socleC22×C5C2×#120
commutator, Frattini, cosocleC42C24×C5
prime radicalC22×C5×D4D4
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22×C5 ◁ C2×C42×C5 ◁ G

926 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 37
transitive degreeμt(G) = 320

A minimal faithful permutation representation — 4 generators on 37 points:

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

Conjugacy classes & character table

230 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1280, 11653);