Finite Group Databasebeta
Cayley diagram

C2×#2618 #34557

order256
nilpotency class2
isoclinismisoclinic class of #2613
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C29

Aliases

direct productC2×#2618

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC22×#121C2
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1859 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);(7,8,9,10)(11,12)(13,15)(14,16)(17,18);(4,6)(11,12,14,16)(13,15,18,17);(3,4)(5,6)(7,8)(9,10)(11,12)(13,17)(14,16)(15,18);(11,13)(12,15)(14,18)(16,17)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#111626, #111664, #115638, …
maximal normal subgroup of#111626, #111664, #115638, …
maximal quotient ofC2×#14256, C2×#14259, C2×#14271, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27545);