Finite Group Databasebeta
Cayley diagram

C2×#1876 #20916

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1876

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC23C4×D4
prime radicalC22×#135C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C23×C8 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

877 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);(4,6)(8,12,14,17)(9,15,16,18);(3,4,5,6)(7,8,10,17,11,14,19,12)(9,13,18,21,16,22,15,20);(7,9)(8,13)(10,18)(11,16)(12,20)(14,22)(15,19)(17,21)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#137673, C4×#1876, #354269, …
maximal normal subgroup of#137673, C4×#1876, #354269, …
maximal quotient ofC2×#8945, C2×#8947, C2×#8946, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13904);