Finite Group Databasebeta

D7×D991 #42123240

order27748
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

direct productD7×D991
unambiguous semidirect product(D7×C991)⋊C2
unambiguous semidirect product(C7×D991)⋊C2
unambiguous semidirect productD6937⋊C2

Splittings

Fitting, socle, derived, HallC7×C991 ⋊ C22
SylowC991 ⋊ C2×D7
SylowC7 ⋊ C2×D991

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC7×C991C22
LCSG ▷ C7×C991
UCSC1

20 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 6937

Conjugacy classes & character table

2485 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(27748, 6);