Finite Group Databasebeta
Cayley diagram

C2×#2406 #34733

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C210

Aliases

direct productC2×#2406

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC23×#41C2
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

2859 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 18 points:

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#115143, #115196, #115293, …
maximal normal subgroup of#115143, #115196, #115293, …
maximal quotient ofC2×#13870, C2×#13956, C2×#13968, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27721);