Finite Group Databasebeta
Cayley diagram

C2×#2477 #34718

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 524288
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C27×C4

Aliases

direct productC2×#2477

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC23×D4C22
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1535 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);(7,8,10,12)(9,13,14,11)(15,16)(17,18)(19,21)(20,22);(4,6)(7,9,10,14)(8,11,12,13)(15,17,19,22)(16,18,21,20);(3,4)(5,6)(7,9)(8,11)(10,14)(12,13)(15,17)(16,20)(18,21)(19,22);(7,8)(9,11)(10,12)(13,14)(15,18,19,20)(16,17,21,22)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#208535, #217139, #221405, …
maximal normal subgroup of#208535, #217139, #221405, …
maximal quotient ofC2×#13898, C2×#13944, C2×#13988, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27706);