Finite Group Databasebeta
Cayley diagram

C2×#12640 #493056

order512
nilpotency class4
isoclinismisoclinic class of #509
automorphism?
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C25×C4

Aliases

direct productC2×#12640

Subgroups

subgroupG/H
centerC22×C4C2×D8
commutatorC8C22×C42
Frattini, cosocleC22×C8C24
socleC23C2×#102
prime radicalC22×#135C22
LCSG ▷ C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ C22×C4×C8 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

1190 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 38
transitive degreeμt(G) = 256

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

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

Conjugacy classes & character table

128 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#493242, C2×#128690, C2×#495715, …
maximal normal subgroup ofC2×#493242, C2×#128690, C2×#495715, …
maximal quotient ofC2×#128531, C2×#128669

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(512, 400252);