Finite Group Databasebeta
Cayley diagram

C2×#1516 #17568

order256
nilpotency class3
isoclinismisoclinic class of #1504
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

direct productC2×#1516

Subgroups

subgroupG/H
center, socleC23C2×C22⋊C4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC2×#525C2
LCSG ▷ C2×C4 ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ C24×C4 ◁ G
LECSG ▷ C22×C4 ▷ C22 ▷ C1

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

normal subgroups only

This group has 749 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) = 64

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

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#105900, #107456, #107543, …
maximal normal subgroup of#105900, #107456, #107543, …
maximal quotient ofC2×#7578, C2×#7579, C2×#7582, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10556);