Finite Group Databasebeta

C5×#11957 #11934677

order1280
nilpotency class4
isoclinismisoclinic class of #11855
automorphism?
homologyAbelianization (H1) = C22×C4×C5 · Schur multiplier (H2) = C2×C4

Aliases

direct productC5×#11957

Subgroups

subgroupG/H
center, socleC22×C5C2×#102
commutatorC2×C8C22×C4×C5
Frattini, cosocleC4×C8C23×C5
prime radicalC22×C5×D8C4
LCSG ▷ C2×C8 ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C5 ◁ C2×C42×C5 ◁ C2×C4×C5×C8 ◁ G

406 conjugacy classes of subgroups; only the 122 normal subgroups are shown.

normal subgroups only

This group has 406 conjugacy classes of subgroups — too many to draw. Only its 122 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 45
transitive degreeμt(G) = 320

A minimal faithful permutation representation — 3 generators on 45 points:

(1,2,3,4,5)(6,7,8,11,9,10,12,13)(14,15,18,23,19,24,33,41,20,25,34,42,32,40,17,22)(16,26,28,38,29,39,27,43,30,44,31,21,35,36,45,37);(7,10)(8,12)(14,16)(15,21)(17,31)(18,27)(19,35)(20,30)(22,39)(23,26)(24,43)(25,38)(28,33)(29,32)(34,45)(36,41)(37,40)(42,44);(7,10)(11,13)

Conjugacy classes & character table

260 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1280, 4945);