Finite Group Databasebeta
Cayley diagram

#20648

order256
nilpotency class3
isoclinismisoclinic class of #3003
automorphismAut(G) order 131072
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

799 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 16
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 16 points:

(2,4)(5,6,7,8)(10,14)(11,12)(15,16);(1,2,3,4);(9,10)(11,14)(12,16)(13,15);(9,11,13,12)(10,14,15,16)

Polycyclic presentation:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#106864, #106865, #106930, …
maximal normal subgroup of#106864, #106865, #106930, …
maximal quotient of#188355, #188367, #188379, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13636);