Finite Group Databasebeta
Cayley diagram

#21086

order256
nilpotency class3
isoclinismisoclinic class of #468
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC23C22×D4
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

569 conjugacy classes of subgroups; only the 207 normal subgroups are shown.

normal subgroups only

This group has 569 conjugacy classes of subgroups — too many to draw. Only its 207 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#354402, #354404, #354405, …
maximal normal subgroup of#354402, #354404, #354405, …
maximal quotient of#202541, #202556, #202571, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14074);