Finite Group Databasebeta
Cayley diagram

#21718

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, cosocleC22×C4C24
commutator, socle, prime radicalC23C23×C4
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

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

normal subgroups only

This group has 387 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) = 28
transitive degreeμt(G) = 256

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#122433, #124817, #128997, …
maximal normal subgroup of#122433, #124817, #128997, …
maximal quotient of#213462, #213463, #213464, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14706);