Finite Group Databasebeta

D7×D251 #20296348

order7028
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

direct productD7×D251
unambiguous semidirect product(D7×C251)⋊C2
unambiguous semidirect product(C7×D251)⋊C2
unambiguous semidirect productD1757⋊C2

Splittings

Fitting, socle, derived, HallC7×C251 ⋊ C22
SylowC251 ⋊ C2×D7
SylowC7 ⋊ C2×D251

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, hypocenterC7×C251C22
LCSG ▷ C7×C251
UCSC1

20 conjugacy classes of subgroups.

Full subgroup data →

Conjugacy classes & character table

635 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofAGL(1,𝔽7)×D251, C3×D7×D251, D21×D251, …
maximal normal subgroup ofAGL(1,𝔽7)×D251, C3×D7×D251, D7×D251⋊C5, …
maximal quotient ofC3×D7×D251, D21×D251, D7×D753, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(7028, 6);