Finite Group Databasebeta
Cayley diagram

C2×#595 #3634

order136
isoclinismisoclinic class of #595
automorphismAut(G) = C2×AGL(1,𝔽17) (order 544) · Inn(G) = #595 · Out(G) = C2×C4
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

direct productC2×#595
unambiguous semidirect productD17⋊C4

Splittings

Fitting, socleC2×C17 ⋊ C4
derived, SylowC17 ⋊ C2×C4

Subgroups

subgroupG/H
center, hypercenterC2#595
commutator, hypocenterC17C2×C4
FrattiniC1G
Fitting, socleC2×C17C4
prime radicalC2×D17C2
cosocleD17C22
LCSG ▷ C17
UCSC1 ◁ C2

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 19
transitive degreeμt(G) = 34

A minimal faithful permutation representation — 2 generators on 19 points:

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

Conjugacy classes & character table

16 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×#595, C4⋊#595, C22⋊#595, …
maximal normal subgroup ofC4×#595, C4⋊#595, C22⋊#595, …
maximal quotient of#63242, #63243, C4×#595, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(136, 13);