Finite Group Databasebeta
Cayley diagram

#22691

order256
nilpotency class3
isoclinismisoclinic class of #3290
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22D42
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC2×#135C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

423 conjugacy classes of subgroups; only the 199 normal subgroups are shown.

normal subgroups only

This group has 423 conjugacy classes of subgroups — too many to draw. Only its 199 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) = 36
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 36 points:

(1,2,3,4)(5,6)(7,19)(8,23)(9,15)(10,17)(11,16)(12,18)(13,21)(14,20)(22,35)(24,32)(25,33)(26,31)(27,36)(28,30)(29,34);(5,7)(6,13)(8,9)(10,24)(11,21)(12,22)(14,30)(15,33)(16,35)(17,19)(18,32)(20,27)(23,36)(25,29)(26,28)(31,34);(5,8,10,25,12,26,11,20)(6,14,16,31,18,33,17,23)(7,9,24,29,22,28,21,27)(13,30,35,34,32,15,19,36);(5,9)(6,15)(7,20)(8,24)(10,29)(11,27)(12,28)(13,31)(14,19)(16,36)(17,34)(18,30)(21,26)(22,25)(23,32)(33,35)

Polycyclic presentation:

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

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#136389, #136423, #136862, …
maximal normal subgroup of#136389, #136423, #136862, …
maximal quotient of#225496, #225501, #225506, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 15679);