Finite Group Databasebeta
Cayley diagram

C2×#2439 #34712

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C27×C4

Aliases

direct productC2×#2439

Subgroups

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

1427 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)(9,13)(10,11)(12,14)(15,16,19,22)(17,21,18,20);(4,6)(8,11)(12,13)(15,16)(17,20)(18,21)(19,22);(3,4)(5,6)(7,8)(9,12)(10,11)(13,14)(15,17,19,18)(16,20,22,21);(7,9,10,14)(8,12,11,13)(15,18,19,17)(16,21,22,20)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#98514, #98534, #122054, …
maximal normal subgroup of#98514, #98534, #122054, …
maximal quotient ofC2×#13879, C2×#13951, C2×#13981, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27700);