Finite Group Databasebeta
Cayley diagram

#18458

order256
nilpotency class3
isoclinismisoclinic class of #18446
automorphismAut(G) = C2×#72286730 (order 4096) · Inn(G) = C2×#120 · Out(G) = C2×#120
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×#120
commutator, Frattini, cosocleC22×C4C24
LCSG ▷ C22×C4 ▷ C22 ▷ C1
UCSC1 ◁ C22 ◁ C2×C42 ◁ G
LECSG ▷ C22×C4 ▷ C22 ▷ C1

518 conjugacy classes of subgroups; only the 111 normal subgroups are shown.

normal subgroups only

This group has 518 conjugacy classes of subgroups — too many to draw. Only its 111 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

34 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#244547, #244548, #244549, …
maximal normal subgroup of#244547, #244548, #244549, …
maximal quotient of#168937, #168956, #168993, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 11446);