Finite Group Databasebeta

D21⋊D101 #22555095

order8484
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productD21⋊D101
unambiguous semidirect productD303⋊D7
unambiguous semidirect productD707⋊D3

Splittings

Fitting, socle, derived, HallC3×C7×C101 ⋊ C22
HallC7×C101 ⋊ C2×D3
HallC3×C101 ⋊ C2×D7
SylowC101 ⋊ D3×D7
HallC3×C7 ⋊ C2×D101
SylowC7 ⋊ D3×D101
SylowC3 ⋊ D7×D101

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, hypocenterC3×C7×C101C22
LCSG ▷ C3×C7×C101
UCSC1

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2^2,3,7,101|d^a=d^6,e^a=e^100,c^b=c^2,d^b=d^6

Conjugacy classes & character table

615 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD63⋊D101, (C3⋊AGL(1,𝔽7))⋊D101, C3×D21⋊D101, …
maximal normal subgroup of(C3⋊AGL(1,𝔽7))⋊D101, C3×D21⋊D101
maximal quotient ofD63⋊D101, C3×D21⋊D101, D303⋊D21, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(8484, 30);