Finite Group Databasebeta
Cayley diagram

C2×#2855 #36620

order256
nilpotency class2
isoclinismisoclinic class of #2846
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2855

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC25C23
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1623 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 22 points:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#96925, #111581, #111639, …
maximal normal subgroup of#96925, #111581, #111639, …
maximal quotient ofC2×#14685, C2×#14695, C2×#14697, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 29608);