Finite Group Databasebeta
Cayley diagram

C2×#1458 #17345

order256
nilpotency class3
isoclinismisoclinic class of #99
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C8 · Schur multiplier (H2) = C25×C4

Aliases

direct productC2×#1458

Subgroups

subgroupG/H
centerC22×C4C22⋊C4
commutatorC22C23×C8
Frattini, cosocleC22×C4C24
socleC23C2×C22⋊C4
prime radicalC25C2×C4
LCSG ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C22 ▷ C1

695 conjugacy classes of subgroups; only the 271 normal subgroups are shown.

normal subgroups only

This group has 695 conjugacy classes of subgroups — too many to draw. Only its 271 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) = 26
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 26 points:

(1,2);(3,4,5,7,6,8,9,10)(11,12)(13,19,21,16)(14,17)(15,18)(20,25,26,23)(22,24);(11,13)(12,16)(14,20)(15,21)(17,23)(18,19)(22,26)(24,25);(11,14,15,22)(12,17,18,24)(13,20,21,26)(16,23,19,25)

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#105560, #105561, #105562, …
maximal normal subgroup of#105560, #105561, #105562, …
maximal quotient ofC2×#7560, C2×#7562, #160424, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10333);