Finite Group Databasebeta
Cayley diagram

C2×#1812 #20670

order256
nilpotency class3
isoclinismisoclinic class of #1812
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25×C4

Aliases

direct productC2×#1812

Subgroups

subgroupG/H
centerC2×C4#117
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC22#380
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C22×M16 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

673 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 34
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 34 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#7228, #127318, C2×#7227, …
maximal normal subgroup ofC2×#7228, #127318, C2×#7227, …
maximal quotient ofC2×#8601, C2×#8602, #188754, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13658);