Finite Group Databasebeta
Cayley diagram

#20797

order256
nilpotency class3
isoclinismisoclinic class of #465
automorphismAut(G) order 524288
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C23×C42

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC23C22×D4
prime radicalC24C2×D4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

563 conjugacy classes of subgroups; only the 327 normal subgroups are shown.

normal subgroups only

This group has 563 conjugacy classes of subgroups — too many to draw. Only its 327 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) = 24
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 24 points:

(2,4)(5,6,7,8)(9,10)(11,18)(12,16)(13,22)(14,17)(15,20)(19,23)(21,24);(9,11,13,20,14,21,12,19)(10,15,16,18,17,23,22,24);(1,2,3,4);(9,12,14,13)(10,16,17,22)(11,19,21,20)(15,18,23,24)

Polycyclic presentation:

2^8|a^2=g,b^2=e,c^2=f,d^2=h,e^2=h,b^a=be,c^a=cf,e^a=eh

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#109024, #109026, #109028, …
maximal normal subgroup of#109024, #109026, #109028, …
maximal quotient of#191370, #191378, #191386, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13785);