Finite Group Databasebeta
Cayley diagram

#20912

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

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×#121C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C24×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

1139 conjugacy classes of subgroups; only the 255 normal subgroups are shown.

normal subgroups only

This group has 1139 conjugacy classes of subgroups — too many to draw. Only its 255 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 16
transitive degreeμt(G) = 64

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

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

Polycyclic presentation:

2^8|a^2=g,b^2=egh,d^2=h,e^2=h,g^2=h,b^a=be,c^a=cf,d^a=dh,e^b=eh,g^b=gh

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107846, #107954, #110511, …
maximal normal subgroup of#107846, #107954, #110511, …
maximal quotient of#193426, #193438, #193445, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13900);