Finite Group Databasebeta
Cayley diagram

#18631

order256
nilpotency class3
isoclinismisoclinic class of #18618
automorphismAut(G) order 16384
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×#120
commutator, Frattini, cosocleC42C24
prime radical#3498C2
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

631 conjugacy classes of subgroups; only the 131 normal subgroups are shown.

normal subgroups only

This group has 631 conjugacy classes of subgroups — too many to draw. Only its 131 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) = 64

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

46 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#245391, #245395, #245405, …
maximal normal subgroup of#245391, #245395, #245405, …
maximal quotient of#166346, #166353, #166362, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 11619);