Finite Group Databasebeta
Cayley diagram

#20864

order256
nilpotency class3
isoclinismisoclinic class of #3019
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C2×#120
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

711 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 20 points:

(1,2,4,3)(5,6)(7,15)(8,14)(9,13)(10,12)(11,16)(17,20)(18,19);(1,3,4,2)(5,7)(6,11)(8,18)(9,16)(10,17)(12,19)(13,20)(14,15);(5,7)(6,11)(8,16)(9,18)(10,17)(12,19)(13,15)(14,20);(6,12)(11,19)(13,14)(15,20)

Polycyclic presentation:

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

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#366364, #366365, #367509, …
maximal normal subgroup of#366364, #366365, #367509, …
maximal quotient of#191809, #191814, #191819, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13852);