Finite Group Databasebeta
Cayley diagram

#21224

order256
nilpotency class3
isoclinismisoclinic class of #465
automorphismAut(G) order 131072
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC23C22×D4
prime radicalC22×#135C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

811 conjugacy classes of subgroups; only the 255 normal subgroups are shown.

normal subgroups only

This group has 811 conjugacy classes of subgroups — too many to draw. Only its 255 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)(11,21)(12,24)(13,18)(14,19)(15,20)(16,22)(17,23);(1,2,3,4)(6,8)(9,11,13,22,15,23,14,12)(10,16,19,21,20,24,18,17);(9,12,14,23,15,22,13,11)(10,17,18,24,20,21,19,16);(9,13,15,14)(10,18,20,19)(11,22,23,12)(16,17,24,21)

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#124069, #124070, #124250, …
maximal normal subgroup of#124069, #124070, #124250, …
maximal quotient of#204257, #204274, #204291, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14212);