Finite Group Databasebeta
Cayley diagram

#17857

order256
nilpotency class3
isoclinismisoclinic class of #576
automorphismAut(G) order 8192
homologyAbelianization (H1) = C23×C8 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C22×D4
commutatorC4C23×C8
Frattini, cosocleC42C24
socleC22C2×C4×D4
prime radicalC2×#135C4
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ #431 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

357 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#135888, #135889, #136693, …
maximal normal subgroup of#135888, #135889, #136693, …
maximal quotient of#182405, #183619, #183878, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10845);