Finite Group Databasebeta
Cayley diagram

C2×#1827 #20707

order256
nilpotency class3
isoclinismisoclinic class of #1812
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

direct productC2×#1827

Subgroups

subgroupG/H
centerC2×C4#117
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC22#381
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C2×#117 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

677 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)(5,12,14,8)(6,11)(7,10)(9,13,16,18)(15,17);(3,5)(4,8)(6,13)(7,14)(9,11)(10,12)(15,18)(16,17);(3,5)(4,9,10,16)(6,13)(7,14)(8,11,12,17)(15,18)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146490, #146491, #146492, …
maximal normal subgroup of#146490, #146491, #146492, …
maximal quotient ofC2×#8730, C2×#8731, #189988, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13695);