Finite Group Databasebeta

C5×#12676 #11935396

order1280
nilpotency class4
isoclinismisoclinic class of #509
automorphism?
homologyAbelianization (H1) = C2×C42×C5 · Schur multiplier (H2) = C2×C4

Aliases

direct productC5×#12676

Subgroups

subgroupG/H
centerC2×C4×C5C2×D8
commutatorC8C2×C42×C5
Frattini, cosocleC22×C8C23×C5
socleC22×C5C2×#107
prime radicalC23×C5C2×Q16
LCSG ▷ C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4×C5 ◁ C2×C42×C5 ◁ C2×C4×C5×C8 ◁ G

306 conjugacy classes of subgroups; only the 190 normal subgroups are shown.

normal subgroups only

This group has 306 conjugacy classes of subgroups — too many to draw. Only its 190 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) = 41
transitive degreeμt(G) = 640

A minimal faithful permutation representation — 3 generators on 41 points:

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

Conjugacy classes & character table

320 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1280, 5664);