Finite Group Databasebeta
Cayley diagram

#21287

order256
nilpotency class3
isoclinismisoclinic class of #3055
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 ◁ C43 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

399 conjugacy classes of subgroups; only the 175 normal subgroups are shown.

normal subgroups only

This group has 399 conjugacy classes of subgroups — too many to draw. Only its 175 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)(15,21)(16,18)(17,25)(19,23)(20,24)(22,27)(26,28);(1,3,4,2)(6,9)(10,12)(14,18)(19,26)(20,25)(21,27);(13,15,17,23,16,22,24,28)(14,19,20,21,18,26,25,27);(5,7,8,11)(6,10,9,12)(15,22)(19,26)(21,27)(23,28)

Polycyclic presentation:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#124542, #124682, #494998, …
maximal normal subgroup of#124542, #124682, #494998, …
maximal quotient of#206509, #206527, #206545, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14275);