Finite Group Databasebeta
Cayley diagram

C2×#2638 #34561

order256
nilpotency class2
isoclinismisoclinic class of #2613
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2638

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC23×D4C22
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1479 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 22 points:

(1,2);(8,11)(12,14)(15,16)(17,19)(18,20)(21,22);(4,6)(8,11)(12,14)(16,17)(20,21);(3,4)(5,6)(7,8)(9,12)(10,11)(13,14)(15,17,19,16)(18,20,22,21);(7,9,10,13)(8,12,11,14)(15,18)(16,20)(17,21)(19,22)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#111620, #129859, #129867, …
maximal normal subgroup of#111620, #129859, #129867, …
maximal quotient ofC2×#14269, C2×#14270, C2×#14292, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27549);