Finite Group Databasebeta
Cayley diagram

C2×#4009 #65781

order320
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

direct productC2×#4009
unambiguous semidirect productD5⋊#103

Splittings

FittingC2×C5×Q8 ⋊ C4
SylowC5 ⋊ C2×#103

Subgroups

subgroupG/H
centerC22C22⋊AGL(1,𝔽5)
commutatorC4×C5C22×C4
FrattiniC4C22×AGL(1,𝔽5)
FittingC2×C5×Q8C4
socleC22×C5C22⋊C4
prime radicalC22×D5D4
cosocleC4×D5C23
hypercenterC2×Q8AGL(1,𝔽5)
hypocenterC5C2×#103
LCSG ▷ C4×C5 ▷ C2×C5 ▷ C5
UCSC1 ◁ C22 ◁ C2×C4 ◁ C2×Q8

162 conjugacy classes of subgroups; only the 60 normal subgroups are shown.

normal subgroups only

This group has 162 conjugacy classes of subgroups — too many to draw. Only its 60 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 15
transitive degreeμt(G) = 80

A minimal faithful permutation representation — 3 generators on 15 points:

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

Conjugacy classes & character table

38 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10603933, AGL(1,𝔽5)×#103, #10603984, …
maximal normal subgroup of#10603933, AGL(1,𝔽5)×#103, #10603984, …
maximal quotient ofC2×#64869, #10604263, C2×#64872, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(320, 1119);