Finite Group Databasebeta
Cayley diagram

C2×#1280 #7905

order256
nilpotency class3
isoclinismisoclinic class of #99
automorphismAut(G) order 65536
homologyAbelianization (H1) = C2×C4×C8 · Schur multiplier (H2) = C25

Aliases

direct productC2×#1280

Subgroups

subgroupG/H
center, socleC24C22⋊C4
commutatorC22C2×C4×C8
Frattini, cosocleC23×C4C23
prime radicalC25C2×C4
LCSG ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C24 ◁ C24×C4 ◁ G
LECSG ▷ C23×C4 ▷ C22 ▷ C1

695 conjugacy classes of subgroups; only the 223 normal subgroups are shown.

normal subgroups only

This group has 695 conjugacy classes of subgroups — too many to draw. Only its 223 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) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 3 generators on 22 points:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#93372, C4×#1280, #105295, …
maximal normal subgroup of#93372, C4×#1280, #105295, …
maximal quotient ofC2×#7016, #94930, #94942, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 893);