Finite Group Databasebeta
Cayley diagram

#17515

order256
nilpotency class3
isoclinismisoclinic class of #3264
automorphismAut(G) = C24×D4×#120 (order 4096) · Inn(G) = C22×D4 · Out(G) = C24×D4
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC22C22×C22⋊C4
prime radical#3480C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C4×#41 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

497 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 128

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

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

Polycyclic presentation:

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

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#221042, #221045, #221048, …
maximal normal subgroup of#221042, #221045, #221048, …
maximal quotient of#164224, #164227, #164234, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10503);