Finite Group Databasebeta
Cayley diagram

C2×#1909 #21007

order256
nilpotency class3
isoclinismisoclinic class of #1909
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC2×#1909

Subgroups

subgroupG/H
center, socleC22#386
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

843 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)(14,27,30,34)(16,28)(18,25,21,26)(23,29,33,31)(24,32);(3,5,7,15,8,16,22,32)(4,9,11,13,12,24,20,28)(6,14,21,31,19,30,18,29)(10,23,26,27,17,33,25,34);(3,6)(4,10)(5,14)(7,21)(8,19)(9,23)(11,26)(12,17)(13,27)(15,31)(16,30)(18,22)(20,25)(24,33)(28,34)(29,32)

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146652, #146657, #147788, …
maximal normal subgroup of#146652, #146657, #147788, …
maximal quotient ofC2×#9099, C2×#9100, #196235, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13995);