Finite Group Databasebeta

C5×#7229 #11929949

order1280
nilpotency class3
isoclinismisoclinic class of #7225
automorphism?
homologyAbelianization (H1) = C42×C5 · Schur multiplier (H2) = C22

Aliases

direct productC5×#7229

Subgroups

subgroupG/H
centerC4×C5H(3,ℤ/4)
commutatorC2×C8C42×C5
Frattini, cosocleC2×#131C22×C5
socleC2×C5#1289
prime radicalC2×C5×#41D4
LCSG ▷ C2×C8 ▷ C4 ▷ C1
UCSC1 ◁ C4×C5 ◁ C2×C5×C8 ◁ G

244 conjugacy classes of subgroups; only the 86 normal subgroups are shown.

normal subgroups only

This group has 244 conjugacy classes of subgroups — too many to draw. Only its 86 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) = 69
transitive degreeμt(G) = 320

A minimal faithful permutation representation — 2 generators on 69 points:

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

Conjugacy classes & character table

200 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1280, 217);