Finite Group Databasebeta
Cayley diagram

C2×#1496 #17474

order256
nilpotency class3
isoclinismisoclinic class of #468
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#1496

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC23C2×C22⋊C4
prime radicalC2×#532C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

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

normal subgroups only

This group has 635 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);(3,4)(5,9)(6,8)(7,10)(11,12,14,18,15,17,21,24)(13,16,20,22,19,23,25,26);(4,8)(5,6)(9,10)(11,13)(12,16)(14,20)(15,19)(17,23)(18,22)(21,25)(24,26);(3,5,7,6)(4,9,10,8)(12,17)(13,19)(18,24)(20,25)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107308, #107312, #108166, …
maximal normal subgroup of#107308, #107312, #108166, …
maximal quotient ofC2×#7698, C2×#7699, C2×#7700, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10462);