Finite Group Databasebeta
Cayley diagram

C2×#1889 #20957

order256
nilpotency class3
isoclinismisoclinic class of B(4,𝔽2)
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C28

Aliases

direct productC2×#1889

Subgroups

subgroupG/H
center, socleC23#120
commutatorC23C23×C4
Frattini, cosocleC24C24
prime radicalC22×#120C2
LCSG ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C25 ◁ G
LECSG ▷ C24 ▷ C2 ▷ C1

1783 conjugacy classes of subgroups; only the 247 normal subgroups are shown.

normal subgroups only

This group has 1783 conjugacy classes of subgroups — too many to draw. Only its 247 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) = 14
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 4 generators on 14 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146593, #146599, #146601, …
maximal normal subgroup of#146593, #146599, #146601, …
maximal quotient ofC2×#8965, C2×#8967, #193874, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13945);