Finite Group Databasebeta
Cayley diagram

C2×#2475 #34719

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 524288
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2475

Subgroups

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

1319 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)(9,10)(11,13)(12,14)(15,16,20,18)(17,19,22,21);(4,6)(7,9,11,14)(8,10,13,12)(15,17,20,22)(16,21,18,19);(3,4)(5,6)(7,9)(8,12)(10,13)(11,14)(15,18,20,16)(17,19,22,21);(7,10,11,12)(8,9,13,14)(15,19)(16,17)(18,22)(20,21)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#208541, #217141, #221397, …
maximal normal subgroup of#208541, #217141, #221397, …
maximal quotient ofC2×#13897, C2×#13944, C2×#13986, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27707);