Finite Group Databasebeta
Cayley diagram

#22275

order256
nilpotency class3
isoclinismisoclinic class of #3198
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC2×#127C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ #376 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

469 conjugacy classes of subgroups; only the 159 normal subgroups are shown.

normal subgroups only

This group has 469 conjugacy classes of subgroups — too many to draw. Only its 159 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) = 28
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 28 points:

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

Polycyclic presentation:

2^8|a^2=g,b^2=eg,c^2=ef,d^2=eh,f^2=h,b^a=be,c^a=cf,d^a=de,f^a=fh,c^b=ce,d^b=dh

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#149712, #149713, #149872, …
maximal normal subgroup of#149712, #149713, #149872, …
maximal quotient of#219373, #219379, #219403, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 15263);