Finite Group Databasebeta

C5×D4×D21 #13132874

order1680
automorphism?
homologyAbelianization (H1) = C23×C5 · Schur multiplier (H2) = C23

Aliases

direct productC5×D4×D21

Splittings

FittingC3×C5×C7×D4 ⋊ C2
HallC3×C5×C7 ⋊ C2×D4
HallC5×C7 ⋊ D3×D4
HallC3×C7 ⋊ C2×C5×D4
HallC3×C5 ⋊ D4×D7
SylowC7 ⋊ C5×D3×D4
SylowC3 ⋊ C5×D4×D7

Subgroups

subgroupG/H
centerC2×C5C22×D21
commutator, cosocleC2×C3×C7C23×C5
FrattiniC2C22×C5×D21
FittingC3×C5×C7×D4C2
socleC2×C3×C5×C7C23
hypercenterC5×D4D21
hypocenterC3×C7C2×C5×D4
LCSG ▷ C2×C3×C7 ▷ C3×C7
UCSC1 ◁ C2×C5 ◁ C5×D4

216 conjugacy classes of subgroups; only the 74 normal subgroups are shown.

normal subgroups only

This group has 216 conjugacy classes of subgroups — too many to draw. Only its 74 normal subgroups are shown.

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

Full subgroup data →

Presentation

transitive degreeμt(G) = 420

Conjugacy classes & character table

300 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1680, 894);