Finite Group Databasebeta
Cayley diagram

#21820

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 131072
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, cosocleC22×C4C24
commutator, socleC23C23×C4
prime radicalC24C22×C4
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

635 conjugacy classes of subgroups; only the 223 normal subgroups are shown.

normal subgroups only

This group has 635 conjugacy classes of subgroups — too many to draw. Only its 223 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)(3,4)(5,6,9,10,8,12,7,11)(13,14)(15,21)(16,19)(17,20)(18,23)(22,27)(24,26)(25,28);(5,7,8,9)(6,10,12,11)(13,15,17,23)(14,18,20,21)(16,24,25,22)(19,27,28,26);(2,4)(5,7,8,9)(6,11,12,10)(13,16,17,25)(14,19,20,28)(15,22,23,24)(18,26,21,27);(6,12)(10,11)(14,20)(18,21)(19,28)(26,27)

Polycyclic presentation:

2^8|a^2=g,b^2=e,c^2=e,g^2=h,b^a=be,c^a=cf,d^a=de,c^b=ceh

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#106339, #106342, #106531, …
maximal normal subgroup of#106339, #106342, #106531, …
maximal quotient of#215724, #215725, #215726, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14808);