Finite Group Databasebeta

C7⋊(D61⋊C25) #36319447

order21350
automorphism?
homologyAbelianization (H1) = C2×C25 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect productC7⋊(D61⋊C25)
unambiguous semidirect productD427⋊C25
unambiguous semidirect product(C61⋊C25)⋊D7

Splittings

derived, HallC7×C61 ⋊ C2×C25
HallC7×C61⋊C25 ⋊ C2
HallC61⋊C25 ⋊ D7
HallD427 ⋊ C25
SylowC61 ⋊ D7×C25
SylowC7 ⋊ D61⋊C25

Subgroups

subgroupG/H
center, Frattini, hypercenterC5C7⋊(D61⋊C5)
commutator, hypocenterC7×C61C2×C25
Fitting, socle, cosocleC5×C7×C61C2×C5
prime radicalC5×D427C5
LCSG ▷ C7×C61
UCSC1 ◁ C5

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 10675

Polycyclic presentation:

2,5,7,61,5|b^5=e,c^a=c^6,d^a=d^60,d^b=d^9

Conjugacy classes & character table

335 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(21350, 12);