Finite Group Databasebeta
Cayley diagram

C2×#2449 #34651

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 524288
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C29

Aliases

direct productC2×#2449

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC23×D4C22
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1915 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 18 points:

(1,2);(4,6)(11,12,15,18)(13,17,14,16);(3,4)(5,6)(8,10)(11,13,15,14)(12,16,18,17);(7,8)(9,10)(11,14,15,13)(12,17,18,16);(3,4)(5,6)(11,12)(13,16)(14,17)(15,18)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#221404, #221468, #372595, …
maximal normal subgroup of#221404, #221468, #372595, …
maximal quotient ofC2×#13882, C2×#13899, C2×#13975, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27639);