Finite Group Databasebeta

D2991 #20238702

order5982
automorphismAut(G) order 5958072
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD2991
unambiguous semidirect productC3⋊D997
unambiguous semidirect productC997⋊D3

Splittings

Fitting, socle, derived, HallC3×C997 ⋊ C2
SylowC997 ⋊ D3
SylowC3 ⋊ D997

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, hypocenterC3×C997C2
LCSG ▷ C3×C997
UCSC1

8 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2,3,997|b^a=b^2,c^a=c^996

Conjugacy classes & character table

1497 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD3×D997, C2×D2991, D8973, …
maximal normal subgroup ofD3×D997, C2×D2991, C3⋊(D997⋊C3), …
maximal quotient ofDic2991, C2×D2991, D8973, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(5982, 5);