Finite Group Databasebeta
Cayley diagram

C4×#413 #20396

order256
nilpotency class3
isoclinismisoclinic class of #99
automorphismAut(G) order 65536
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C25×C4

Aliases

direct productC4×#413

Subgroups

subgroupG/H
centerC42C22⋊C4
commutatorC22C22×C42
Frattini, cosocleC22×C4C24
socleC22C22×C22⋊C4
prime radicalC22×#41C22
LCSG ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C42 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

785 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 20 points:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#105564, #105565, #105600, …
maximal normal subgroup of#105564, #105565, #105600, …
maximal quotient ofC4×#1458, C4×#1459, #181952, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13384);