Finite Group Databasebeta
Cayley diagram

C2×#12642 #493060

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

Aliases

direct productC2×#12642

Subgroups

subgroupG/H
centerC22×C4C2×D8
commutatorC8C22×C42
Frattini, cosocleC22×C8C24
socleC23C4×D8
prime radicalC22×#135C22
LCSG ▷ C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C23×C8 ◁ C22×C4×C8 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

1158 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);(3,4)(5,6)(7,8,11,18,14,19,13,29)(9,20,23,33,26,38,25,31)(10,16,27,35,28,36,12,17)(15,30,32,21,34,24,37,22);(4,6)(7,9,12,24,13,25,28,21,14,26,27,30,11,23,10,22)(8,15,16,33,18,32,35,38,19,34,36,31,29,37,17,20);(7,10,11,27,14,28,13,12)(8,16,18,35,19,36,29,17)(9,21,23,24,26,22,25,30)(15,31,32,20,34,33,37,38)

Conjugacy classes & character table

128 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#493242, C2×C4×#2179, C2×#128694, …
maximal normal subgroup ofC2×#493242, C2×C4×#2179, C2×#128694, …
maximal quotient ofC2×#128666, C2×#128534, C2×#128669, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(512, 400256);