Finite Group Databasebeta
Cayley diagram

#17830

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) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC22C22×C4⋊C4
prime radicalC2×#41D4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C4×#41 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

317 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:

(2,5)(3,7)(6,8)(9,10,12,15,13,16,19,22)(11,14,18,21,17,20,23,24);(1,2,3,5,4,6,7,8);(2,6)(5,8)(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=e,e^2=g,f^2=h,b^a=be,e^a=eg,c^b=cg,d^c=dh

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#225728, #225729, #225732, …
maximal normal subgroup of#225728, #225729, #225732, …
maximal quotient of#180935, #183418, #183592, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10818);