Finite Group Databasebeta
Cayley diagram

C2×#1795 #20621

order256
nilpotency class3
isoclinismisoclinic class of #1795
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C28

Aliases

direct productC2×#1795

Subgroups

subgroupG/H
center, socleC22#379
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×H(5,𝔽2)C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

1973 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 32

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

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

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146484, #146488, #146587, …
maximal normal subgroup of#146484, #146488, #146587, …
maximal quotient ofC2×#8322, C2×#8324, #184971, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13609);