Finite Group Databasebeta
Cayley diagram

C2×#1927 #21055

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 131072
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#1927

Subgroups

subgroupG/H
center, socle, prime radicalC24C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C24 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

619 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 4 generators on 18 points:

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#99884, #99900, C4×#1927, …
maximal normal subgroup of#99884, #99900, C4×#1927, …
maximal quotient ofC2×#9543, C2×#9547, #202347, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14043);