Finite Group Databasebeta

Dic7⋊#170 #11764639

order1120
automorphism?
homologyAbelianization (H1) = C2×C8 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productDic7⋊#170

Splittings

HallC5×C7 ⋊ C4⋊C8
SylowC7 ⋊ C4⋊#170
SylowC5 ⋊ Dic7⋊C8

Subgroups

subgroupG/H
center, Frattini, hypercenterC22D7×AGL(1,𝔽5)
commutatorC2×C5×C7C2×C8
Fitting, socle, prime radicalC22×C5×C7C2×C4
cosocleC2×C7×Dic5C22
hypocenterC5×C7C4⋊C8
LCSG ▷ C2×C5×C7 ▷ C5×C7
UCSC1 ◁ C22

76 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 1120

Polycyclic presentation:

2^5,5,7|a^2=d,b^2=c,c^2=e,b^a=bd,g^a=g^6,f^b=f^2,f^c=f^4

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1120, 245);