Finite Group Databasebeta
Cayley diagram

C2×#1514 #17556

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

Aliases

direct productC2×#1514

Subgroups

subgroupG/H
center, socleC23C2×C22⋊C4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC2×#532C2
LCSG ▷ C2×C4 ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C22 ▷ C1

651 conjugacy classes of subgroups; only the 191 normal subgroups are shown.

normal subgroups only

This group has 651 conjugacy classes of subgroups — too many to draw. Only its 191 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);(4,7)(5,10)(8,9)(11,13)(12,16)(14,20)(15,21)(17,23)(18,19)(22,26)(24,25);(4,8)(7,9)(11,14,15,22)(12,17,18,24)(13,20,21,26)(16,23,19,25)

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107308, #107594, #107614, …
maximal normal subgroup of#107308, #107594, #107614, …
maximal quotient ofC2×#7594, C2×#7603, C2×#7604, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10544);