Finite Group Databasebeta
Cayley diagram

C2×#2354 #34117

order256
nilpotency class2
isoclinismisoclinic class of D42
automorphismAut(G) order 2097152
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C28×C4

Aliases

direct productC2×#2354

Subgroups

subgroupG/H
center, socleC24C24
commutatorC22C24×C4
Frattini, cosocleC23C25
prime radicalC23×D4C22
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1839 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);(3,4,6,5)(7,8,9,10)(12,13)(16,17);(4,5)(11,12,15,13)(14,17,18,16);(11,13,15,12)(14,17,18,16);(3,5,6,4)(11,14,15,18)(12,16,13,17)

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#97563, #105991, #106711, …
maximal normal subgroup of#97563, #105991, #106711, …
maximal quotient ofC2×#13801, C2×C4⋊C42, C2×#13810, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27105);