Finite Group Databasebeta
Cayley diagram

#21653

order256
nilpotency class3
isoclinismisoclinic class of #3057
automorphismAut(G) order 32768
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

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

normal subgroups only

This group has 385 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)(13,14,18,20)(15,21,23,22)(16,17,25,26)(19,27,28,24);(6,9)(10,12)(13,15,17,24,18,23,26,27)(14,19,16,21,20,28,25,22);(5,7,8,11)(6,10,9,12)(13,16,17,20,18,25,26,14)(15,22,24,19,23,21,27,28);(1,3,4,2)(15,23)(19,28)(21,22)(24,27)

Polycyclic presentation:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#124411, #124773, #128892, …
maximal normal subgroup of#124411, #124773, #128892, …
maximal quotient of#212713, #212716, #212723, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14641);