Finite Group Databasebeta
Cayley diagram

C2×#2148 #33391

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

Aliases

direct productC2×#2148

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

577 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);(3,4,6,10,8,13,20,12)(5,14,17,28,18,31,15,30)(7,21,19,11,23,27,32,29)(9,22,25,16,26,33,24,34);(3,5)(4,9)(6,15)(7,22)(8,18)(10,24)(11,28)(12,25)(13,26)(14,27)(16,32)(17,20)(19,34)(21,31)(23,33)(29,30);(3,6,8,20)(4,10,13,12)(5,15,18,17)(7,19,23,32)(9,24,26,25)(11,27,29,21)(14,30,31,28)(16,22,34,33)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146736, #146737, #146739, …
maximal normal subgroup of#146736, #146737, #146739, …
maximal quotient ofC2×#11597, C2×#11598, #481065, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 26379);