Finite Group Databasebeta
Cayley diagram

C2×#2640 #34615

order256
nilpotency class2
isoclinismisoclinic class of #2613
automorphismAut(G) order 4194304
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C26×C42

Aliases

direct productC2×#2640

Subgroups

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

1403 conjugacy classes of subgroups; only the 527 normal subgroups are shown.

normal subgroups only

This group has 1403 conjugacy classes of subgroups — too many to draw. Only its 527 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 22 points:

(1,2);(3,4,5,6)(7,8,11,14)(9,10,13,12)(17,21)(19,22);(3,4,5,6)(7,9,11,13)(8,12,14,10)(15,16,18,20)(17,19,21,22);(3,4)(5,6)(7,9)(8,12)(10,14)(11,13)(15,17)(16,19)(18,21)(20,22);(7,10,11,12)(8,13,14,9)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#97035, #111920, #111927, …
maximal normal subgroup of#97035, #111920, #111927, …
maximal quotient ofC2×#14260, C2×#14261, C2×#14273, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27603);