Finite Group Databasebeta
Cayley diagram

#21566

order256
nilpotency class2
isoclinismisoclinic class of #392
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC22×C8C23
commutator, socleC23C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×D4C2×C4
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C22×C8 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

453 conjugacy classes of subgroups.

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

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#122399, #122403, #128960, …
maximal normal subgroup of#122399, #122403, #128960, …
maximal quotient of#212156, #212157, #212158, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14554);