Finite Group Databasebeta
Cayley diagram

C2×#1796 #20622

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

Aliases

direct productC2×#1796

Subgroups

subgroupG/H
center, socleC22#379
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×2−1+4C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

1801 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 34
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 34 points:

(1,2);(3,4)(5,13)(6,17,19,10)(7,20)(8,12)(9,15)(11,22)(14,28,30,27)(16,26)(18,25,34,32)(21,24)(23,29,31,33);(3,5,8,16)(4,9,12,24)(6,14,19,30)(7,21,22,15)(10,23,17,31)(11,26,20,13)(18,33,34,29)(25,28,32,27);(3,6)(4,10)(5,14)(7,18)(8,19)(9,23)(11,25)(12,17)(13,27)(15,29)(16,30)(20,32)(21,33)(22,34)(24,31)(26,28)

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146485, #146487, #146588, …
maximal normal subgroup of#146485, #146487, #146588, …
maximal quotient ofC2×#8323, C2×#8324, #184972, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13610);