Finite Group Databasebeta

D1021⋊C5 #23779262

order10210
automorphism?
homologyAbelianization (H1) = C2×C5 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect productD1021⋊C5
unambiguous semidirect product(C1021⋊C5)⋊C2

Splittings

Fitting, socle, derived, SylowC1021 ⋊ C2×C5
HallC1021⋊C5 ⋊ C2
HallD1021 ⋊ C5

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC1021C2×C5
LCSG ▷ C1021
UCSC1

8 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2,5,1021|c^a=c^1020,c^b=c^802

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#16861391⋊C5, C2×D1021⋊C5, C3×D1021⋊C5, …
maximal normal subgroup of#16861391⋊C5, C2×D1021⋊C5, C3×D1021⋊C5, …
maximal quotient ofDic1021⋊C5, C2×D1021⋊C5, C3×D1021⋊C5, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(10210, 1);