Finite Group Databasebeta
Cayley diagram

#20351

order256
nilpotency class3
isoclinismisoclinic class of #576
automorphismAut(G) order 196608
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C27

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C22×D4
commutatorC4C22×C42
Frattini, cosocleC22×C4C24
socleC22C22×C4⋊C4
prime radicalC22×#41C22
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C22×#41 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

989 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 36
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 36 points:

(1,2)(3,4)(5,6,9,15,11,16,10,14)(7,17,19,12,21,26,20,27)(8,13,23,30,22,28,24,29)(18,31,33,25,32,36,34,35);(2,4)(5,7,10,20,11,21,9,19)(6,12,15,26,16,27,14,17)(8,18,24,34,22,32,23,33)(13,25,30,36,28,35,29,31);(5,8)(6,13)(7,18)(9,23)(10,24)(11,22)(12,25)(14,29)(15,30)(16,28)(17,31)(19,33)(20,34)(21,32)(26,36)(27,35);(8,22)(13,28)(18,32)(23,24)(25,35)(29,30)(31,36)(33,34)

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

Fitting subgroup of#20351⋊C3
maximal subgroup of#138252, #138253, #356501, …
maximal normal subgroup of#138252, #138253, #356501, …
maximal quotient of#180912, #180918, #180925, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13339);