Finite Group Databasebeta

C7⋊(D71⋊C5) #19097252

order4970
automorphism?
homologyAbelianization (H1) = C2×C5 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect productC7⋊(D71⋊C5)
unambiguous semidirect product(C71⋊C5)⋊D7
unambiguous semidirect productD497⋊C5

Splittings

Fitting, socle, derived, HallC7×C71 ⋊ C2×C5
HallC7×C71⋊C5 ⋊ C2
HallD497 ⋊ C5
HallC71⋊C5 ⋊ D7
SylowC71 ⋊ C5×D7
SylowC7 ⋊ D71⋊C5

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, hypocenterC7×C71C2×C5
LCSG ▷ C7×C71
UCSC1

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2,5,7,71|c^a=c^6,d^a=d^70,d^b=d^54

Conjugacy classes & character table

74 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC3×C7⋊(D71⋊C5), C3⋊(C7⋊(D71⋊C5)), ΓL(1,𝔽8)⋊(D71⋊C5), …
maximal normal subgroup ofC3×C7⋊(D71⋊C5), ΓL(1,𝔽8)⋊(D71⋊C5), C5×C7⋊(D71⋊C5), …
maximal quotient ofC3×C7⋊(D71⋊C5), C3⋊(C7⋊(D71⋊C5)), C7⋊(D71⋊C25), …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(4970, 17);