Finite Group Databasebeta
Cayley diagram

C2×#2145 #33387

order256
nilpotency class4
isoclinismisoclinic class of #360
automorphismAut(G) order 16384
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

direct productC2×#2145

Subgroups

subgroupG/H
centerC2×C4#102
commutatorC8C23×C4
Frattini, cosocleC2×C8C24
socleC22C2×#102
prime radicalC22×#135C2
LCSG ▷ C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C23×C4 ◁ C23×C8 ◁ G
LECSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1

585 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)(5,14,17,31)(6,10)(7,21)(8,13)(9,16,25,33)(11,19)(12,20)(15,30,18,27)(22,29,34,24)(23,26)(28,32);(3,5)(4,9)(6,15)(7,22)(8,17)(10,24)(11,27)(12,29)(13,25)(14,26)(16,32)(18,20)(19,33)(21,31)(23,34)(28,30);(3,6,8,20)(4,10,13,12)(5,15,17,18)(7,19,23,32)(9,24,25,29)(11,26,28,21)(14,30,31,27)(16,22,33,34)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146733, #146736, #146737, …
maximal normal subgroup of#146733, #146736, #146737, …
maximal quotient ofC2×#11597, C2×#11599, C2×#11600, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 26375);