Finite Group Databasebeta
Cayley diagram

#12657

order256
nilpotency class2
isoclinismisoclinic class of #7855
automorphismAut(G) order 8192
homologyAbelianization (H1) = C2×C42 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, commutatorC2×C4C2×C42
Frattini, cosocleC22×C8C23
socleC22C2×#97
prime radicalC23C2×M16
LCSG ▷ C2×C4 ▷ C1
UCSC1 ◁ C2×C4 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

167 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 3 generators on 36 points:

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

Polycyclic presentation:

2^8|a^2=e,b^2=f,c^2=de,d^2=h,f^2=g,g^2=h,b^a=bd,f^a=fh,c^b=cg,e^b=eh,f^c=fh

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#124728, #124787, #124788, …
maximal normal subgroup of#124728, #124787, #124788, …
maximal quotient of#129053, #129068, #129078, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 5645);