Finite Group Databasebeta
Cayley diagram

#21431

order256
nilpotency class2
isoclinismisoclinic class of #392
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C42C23
commutator, socleC23C23×C4
Frattini, cosocleC22×C4C24
prime radicalC24C22×C4
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C2×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

405 conjugacy classes of subgroups; only the 191 normal subgroups are shown.

normal subgroups only

This group has 405 conjugacy classes of subgroups — too many to draw. Only its 191 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)(3,6)(4,5)(7,8)(9,10)(11,14)(12,13)(15,16)(17,18,22,19,21,24,20,23);(2,5)(6,8)(17,19,22,24,21,23,20,18);(1,3,4,7)(2,6,5,8)(10,13)(14,16)(17,20,21,22)(18,19,24,23);(9,11,12,15)(10,14,13,16)(17,20,21,22)(18,23,24,19)

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#183752, #183753, #183754, …
maximal normal subgroup of#183752, #183753, #183754, …
maximal quotient of#353840, #353987, #354127, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14419);