Finite Group Databasebeta
Cayley diagram

C2×#1891 #20963

order256
nilpotency class3
isoclinismisoclinic class of B(4,𝔽2)
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1891

Subgroups

subgroupG/H
centerC2×C4#120
commutatorC23C23×C4
Frattini, cosocleC22×C4C24
socleC22#386
prime radicalC2×#525C2
LCSG ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

935 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 4 generators on 18 points:

(1,2);(3,4,7,11,8,5,9,13)(6,12,15,18,14,10,16,17);(3,5,7,13,8,4,9,11)(6,12,16,17,14,10,15,18);(3,6)(4,10)(5,12)(7,16)(8,14)(9,15)(11,18)(13,17)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146596, #146597, #146598, …
maximal normal subgroup of#146596, #146597, #146598, …
maximal quotient ofC2×#8965, C2×#8966, #193864, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13951);