Finite Group Databasebeta
Cayley diagram

#20416

order256
nilpotency class3
isoclinismisoclinic class of #576
automorphismAut(G) order 65536
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C25×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23C22×D4
commutatorC4C22×C42
Frattini, cosocleC22×C4C24
prime radicalC23×D4C22
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×#117 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

869 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 24 points:

(1,2)(3,4)(5,6,8,7)(9,10)(11,19)(12,16)(13,17)(14,18)(15,20)(21,24)(22,23);(2,4)(9,11,13,21,14,22,12,20)(10,15,16,23,18,24,17,19);(5,7,8,6)(9,10)(11,15)(12,17)(13,16)(14,18)(19,20)(21,23)(22,24);(9,12,14,13)(10,16,18,17)(11,20,22,21)(15,23,24,19)

Polycyclic presentation:

2^8|a^2=f,b^2=g,c^2=f,d^2=h,e^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

maximal subgroup of#355851, #355853, #356104, …
maximal normal subgroup of#355851, #355853, #356104, …
maximal quotient of#182150, #182163, #182174, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13404);