Finite Group Databasebeta
Cayley diagram

C2×#2499 #34790

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C27×C4

Aliases

direct productC2×#2499

Subgroups

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

1351 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);(4,6)(8,11)(9,13)(15,16,19,21)(17,18,20,22);(7,8)(9,12)(10,11)(13,14)(15,17)(16,18)(19,20)(21,22);(3,4,5,6)(15,18)(16,20)(17,21)(19,22);(7,9,10,13)(8,12,11,14)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#98522, #98548, #111906, …
maximal normal subgroup of#98522, #98548, #111906, …
maximal quotient ofC2×#13879, C2×#13939, C2×#14000, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27778);