Finite Group Databasebeta
Cayley diagram

C2×#2108 #33323

order256
nilpotency class2
isoclinismisoclinic class of D4
automorphismAut(G) order 32768
homologyAbelianization (H1) = C22×C4×C8 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#2108

Subgroups

subgroupG/H
centerC22×C16C22
commutatorC2C22×C4×C8
Frattini, cosocleC2×C8C24
socleC23C22×C8
prime radicalC24C2×C8
LCSG ▷ C2 ▷ C1
UCSC1 ◁ C22×C16 ◁ G
LECSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1

427 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 38
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 38 points:

(1,2);(7,8,10,14,11,15,20,26,12,16,21,27,22,28,32,36)(9,13,18,24,19,25,31,35,17,23,29,33,30,34,37,38);(3,4,5,6)(7,9)(8,13)(10,18)(11,19)(12,17)(14,24)(15,25)(16,23)(20,31)(21,29)(22,30)(26,35)(27,33)(28,34)(32,37)(36,38);(9,17)(13,23)(18,29)(19,30)(24,33)(25,34)(31,37)(35,38)

Conjugacy classes & character table

160 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#126699, #126700, #128248, …
maximal normal subgroup of#126699, #126700, #128248, …
maximal quotient ofC2×#11399, C2×#11401, C2×C16×M16, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 26311);