Finite Group Databasebeta
Cayley diagram

#18172

order256
nilpotency class3
isoclinismisoclinic class of #18162
automorphismAut(G) order 8192
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×#120
commutator, Frattini, cosocleC22×C4C24
prime radical#3492C2
LCSG ▷ C22×C4 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C22 ▷ C1

499 conjugacy classes of subgroups; only the 117 normal subgroups are shown.

normal subgroups only

This group has 499 conjugacy classes of subgroups — too many to draw. Only its 117 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) = 32
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 4 generators on 32 points:

(1,2,8,18)(3,12,23,32)(4,6,11,7)(5,17,24,28)(9,25,31,15)(10,21,20,22)(13,29,26,19)(14,27,16,30);(1,3)(2,9)(4,13)(5,19)(6,16)(7,14)(8,23)(10,27)(11,26)(12,17)(15,22)(18,31)(20,30)(21,25)(24,29)(28,32);(1,4,7,2)(3,13,14,9)(5,20,22,28)(6,18,8,11)(10,21,17,24)(12,29,27,25)(15,32,19,30)(16,31,23,26);(3,14)(9,13)(12,27)(15,19)(16,23)(25,29)(26,31)(30,32)

Polycyclic presentation:

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

Conjugacy classes & character table

40 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#140043, #140045, #140062, …
maximal normal subgroup of#140043, #140045, #140062, …
maximal quotient of#166300, #166316, #166356, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 11160);