Finite Group Databasebeta
Cayley diagram

C2×#1481 #17456

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×#1481

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC23C2×C22⋊C4
prime radicalC24C22⋊C4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

533 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 128

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

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107449, #107453, #107991, …
maximal normal subgroup of#107449, #107453, #107991, …
maximal quotient ofC2×#7655, C2×#7660, C2×#7662, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10444);