Finite Group Databasebeta

C2×C7×C7⋊AGL(1,𝔽5) #14520033

order1960
isoclinismisoclinic class of C7⋊AGL(1,𝔽5)
automorphism?
homologyAbelianization (H1) = C2×C4×C7 · Schur multiplier (H2) = C2

Aliases

direct productC2×C7×C7⋊AGL(1,𝔽5)
unambiguous semidirect productD5⋊(C7×Dic7)
unambiguous semidirect product(C2×C7)⋊(C7×AGL(1,𝔽5))

Splittings

Fitting, socleC2×C5×C72 ⋊ C4
derivedC5×C7 ⋊ C2×C4×C7
HallC5×C72 ⋊ C2×C4
SylowC72 ⋊ C2×AGL(1,𝔽5)
SylowC5 ⋊ C2×C7×Dic7

Subgroups

subgroupG/H
center, hypercenterC2×C7C7⋊AGL(1,𝔽5)
commutator, hypocenterC5×C7C2×C4×C7
FrattiniC1G
Fitting, socleC2×C5×C72C4
prime radicalC2×C72×D5C2
cosocleC7×D5C22×C7
LCSG ▷ C5×C7
UCSC1 ◁ C2×C7

94 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 140

Conjugacy classes & character table

238 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×(C7⋊AGL(1,𝔽5))⋊D7, C7×AGL(1,𝔽5)×Dic7, Dic7×C7⋊AGL(1,𝔽5), …
maximal normal subgroup ofC2×(C7⋊AGL(1,𝔽5))⋊D7, C7×AGL(1,𝔽5)×Dic7, Dic7×C7⋊AGL(1,𝔽5), …
maximal quotient ofC7×C22⋊(C7⋊AGL(1,𝔽5))

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1960, 130);