Finite Group Databasebeta
Cayley diagram

#6407

order224
automorphismAut(G) = AGL(1,𝔽7)×#2196 (order 5376) · Inn(G) = C22⋊Dic7 · Out(G) = C2×C3×D4
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC7 ⋊ #100

Subgroups

subgroupG/H
centerC2C22⋊Dic7
commutatorC22×C7C2×C4
FrattiniC2×C4C2×D7
Fitting, prime radicalC2×C7×D4C2
socleC2×C7C22⋊C4
cosocleC2×C4×C7C22
hypercenterC2×D4D7
hypocenterC7#100
LCSG ▷ C22×C7 ▷ C2×C7 ▷ C7
UCSC1 ◁ C2 ◁ C2×C4 ◁ C2×D4

46 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 15
transitive degreeμt(G) = 56

A minimal faithful permutation representation — 2 generators on 15 points:

(1,2,4,6,7,5,3)(9,12)(10,14);(2,3)(4,5)(6,7)(8,9,10,13,11,12,14,15)

Polycyclic presentation:

2^5,7|a^2=c,c^2=e,b^a=bd,d^a=de,f^a=f^6,c^b=ce

Conjugacy classes & character table

41 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#89266, #89267, #89331, …
maximal normal subgroup of#89266, #89267, #89331, …
maximal quotient of#89320, #89325, #89335, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(224, 39);