Finite Group Databasebeta
Cayley diagram

#21094

order256
nilpotency class3
isoclinismisoclinic class of #3055
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC24C2×D4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

561 conjugacy classes of subgroups; only the 211 normal subgroups are shown.

normal subgroups only

This group has 561 conjugacy classes of subgroups — too many to draw. Only its 211 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)(9,10,15,20)(11,17,22,23)(12,16,21,24)(13,18,14,19);(5,7,8,6)(9,11,14,21,15,22,13,12)(10,16,18,23,20,24,19,17);(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)(11,21,22,12)(16,17,24,23)

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,d^b=dh,d^c=dh

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#368469, #368472, #368508, …
maximal normal subgroup of#368469, #368472, #368508, …
maximal quotient of#202549, #202564, #202579, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14082);