Finite Group Databasebeta

C5×#13683 #11936403

order1280
nilpotency class5
isoclinismisoclinic class of #13681
automorphism?
homologyAbelianization (H1) = C23×C5 · Schur multiplier (H2) = C23

Aliases

direct productC5×#13683

Subgroups

subgroupG/H
center, socleC2×C5#2196
commutator, Frattini, cosocleC4⋊Q8C23×C5
prime radicalC5×#3291C2
LCSG ▷ C4⋊Q8 ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C2×C5 ◁ C22×C5 ◁ C2×C4×C5 ◁ C5×C4⋊Q8 ◁ G

392 conjugacy classes of subgroups; only the 58 normal subgroups are shown.

normal subgroups only

This group has 392 conjugacy classes of subgroups — too many to draw. Only its 58 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) = 21
transitive degreeμt(G) = 80

A minimal faithful permutation representation — 3 generators on 21 points:

(1,2,3,4,5)(6,7,12,11)(8,16,19,21)(9,20,15,10)(13,18,14,17);(6,8)(7,13)(9,18)(10,21)(11,14)(12,19)(15,17)(16,20);(6,8)(7,14)(9,16)(10,17)(11,13)(12,19)(15,21)(18,20)

Conjugacy classes & character table

125 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1280, 6671);