Finite Group Databasebeta

C5×#20587 #11943307

order1280
nilpotency class3
isoclinismisoclinic class of #17367
automorphism?
homologyAbelianization (H1) = C23×C4×C5 · Schur multiplier (H2) = C27×C4

Aliases

direct productC5×#20587

Subgroups

subgroupG/H
center, socleC22×C5C22×C22⋊C4
commutatorC23C23×C4×C5
Frattini, cosocleC24C24×C5
prime radicalC22×C5×2−1+4C2
LCSG ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C22×C5 ◁ C23×C5×Q8 ◁ G

3634 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 41
transitive degreeμt(G) = 320

A minimal faithful permutation representation — 4 generators on 41 points:

(1,2,3,4,5)(6,7)(8,9)(10,11)(12,20,23,16)(13,17)(14,18)(15,19)(21,34,37,28)(22,35,39,29)(24,30)(25,31)(26,32)(27,33)(36,41,38,40);(10,12)(11,16)(13,21)(14,22)(15,23)(17,28)(18,29)(19,20)(24,36)(25,37)(26,38)(27,39)(30,40)(31,34)(32,41)(33,35);(7,9)(10,13,15,25)(11,17,19,31)(12,21,23,37)(14,26,27,24)(16,28,20,34)(18,32,33,30)(22,38,39,36)(29,41,35,40);(10,14,15,27)(11,18,19,33)(12,22,23,39)(13,24,25,26)(16,29,20,35)(17,30,31,32)(21,36,37,38)(28,40,34,41)

Conjugacy classes & character table

290 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1280, 13575);