Finite Group Databasebeta
Cayley diagram

C2×#2374 #34150

order256
nilpotency class2
isoclinismisoclinic class of D42
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2374

Subgroups

subgroupG/H
center, socleC24C24
commutatorC22C24×C4
Frattini, cosocleC23C25
prime radicalC23×D4C22
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1547 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);(3,4,6,5)(8,11)(12,14)(15,16)(17,21)(18,19)(20,22);(3,5,6,4)(16,19)(20,21);(7,8,10,11)(9,12,13,14)(15,17)(16,20)(18,22)(19,21);(7,9,10,13)(8,12,11,14)(15,16)(17,20)(18,19)(21,22)

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#146600, #182031, #188342, …
maximal normal subgroup of#146600, #182031, #188342, …
maximal quotient ofC2×#13807, C2×#13819, C2×#13822, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27138);