Finite Group Databasebeta
Cayley diagram

C2×#1559 #17733

order256
nilpotency class3
isoclinismisoclinic class of #1510
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×#1559

Subgroups

subgroupG/H
center, socleC23C2×C22⋊C4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
prime radicalC24C22⋊C4
LCSG ▷ C2×C4 ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ C22×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

499 conjugacy classes of subgroups; only the 199 normal subgroups are shown.

normal subgroups only

This group has 499 conjugacy classes of subgroups — too many to draw. Only its 199 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) = 128

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

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

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107351, #107609, #107625, …
maximal normal subgroup of#107351, #107609, #107625, …
maximal quotient ofC2×#7596, C2×#7600, #160565, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10721);