Finite Group Databasebeta
Cayley diagram

C2×#2221 #33614

order256
nilpotency class4
isoclinismisoclinic class of #2221
automorphismAut(G) order 16384
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C25

Aliases

direct productC2×#2221

Subgroups

subgroupG/H
center, socleC22#466
commutator, Frattini, cosocleC2×C8C24
LCSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C22×C4 ◁ C2×#131 ◁ G
LECSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1

339 conjugacy classes of subgroups; only the 119 normal subgroups are shown.

normal subgroups only

This group has 339 conjugacy classes of subgroups — too many to draw. Only its 119 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) = 34
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 34 points:

(1,2);(4,10)(5,16)(6,11)(7,8)(12,27)(13,24)(14,23)(15,25)(17,31)(18,21)(19,20)(22,28)(29,34)(30,33);(3,4,11,24,8,14,20,25,9,15,19,23,7,13,6,10)(5,12,26,27,16,28,31,33,18,29,32,34,21,30,17,22);(3,5)(4,12)(6,17)(7,21)(8,16)(9,18)(10,22)(11,26)(13,30)(14,28)(15,29)(19,32)(20,31)(23,34)(24,27)(25,33)

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#152505, #152516, #152638, …
maximal normal subgroup of#152505, #152516, #152638, …
maximal quotient ofC2×#12430, C2×#12433, #490474, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 26602);