Finite Group Databasebeta
Cayley diagram

#21281

order256
nilpotency class3
isoclinismisoclinic class of #3057
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C23×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socle, prime radicalC23C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ #376 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

383 conjugacy classes of subgroups; only the 171 normal subgroups are shown.

normal subgroups only

This group has 383 conjugacy classes of subgroups — too many to draw. Only its 171 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) = 256

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#138759, #138761, #221373, …
maximal normal subgroup of#138759, #138761, #221373, …
maximal quotient of#206503, #206521, #206539, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14269);