Finite Group Databasebeta
Cayley diagram

C2×#2951 #60165

order256
nilpotency class3
isoclinismisoclinic class of #576
automorphismAut(G) order 262144
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C29

Aliases

direct productC2×#2951

Subgroups

subgroupG/H
center, socleC23C22×D4
commutatorC4C24×C4
Frattini, cosocleC2×C4C25
prime radicalC22×#135C2
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×#117 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1403 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)(7,8)(9,14)(10,16)(11,15)(12,17)(13,18)(19,22)(20,21);(7,9)(8,13)(10,18)(11,20)(12,19)(14,15)(16,22)(17,21);(3,5,6,4)(7,9)(8,14)(10,20)(11,18)(12,19)(13,15)(16,21)(17,22);(7,10,12,11)(8,15,17,16)(9,18,19,20)(13,14,21,22)

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#129517, #129519, #146733, …
maximal normal subgroup of#129517, #129519, #146733, …
maximal quotient ofC2×#17857, C2×#17881, C2×#17898, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53153);