Finite Group Databasebeta
Cayley diagram

C2×#1929 #21069

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#1929

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC23C4×D4
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C23×C8 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

541 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 22 points:

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#137711, C4×#1929, #354352, …
maximal normal subgroup of#137711, C4×#1929, #354352, …
maximal quotient ofC2×#9541, C2×#9543, C2×#9542, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14057);