Finite Group Databasebeta
Cayley diagram

#6489

order224
isoclinismisoclinic class of Dic14
automorphismAut(G) = AGL(1,𝔽7)×#23900 (order 10752) · Inn(G) = C2×D7 · Out(G) = C3×#2403
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C2×C4

Aliases

No aliases for this group.

Splittings

SylowC7 ⋊ #117

Subgroups

subgroupG/H
centerC2×C4C2×D7
commutatorC2×C7C22×C4
FrattiniC22C22×D7
FittingC22×C4×C7C2
socle, cosocleC22×C7C23
prime radicalC23×C7C22
hypercenterC22×C4D7
hypocenterC7#117
LCSG ▷ C2×C7 ▷ C7
UCSC1 ◁ C2×C4 ◁ C22×C4

76 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 19
transitive degreeμt(G) = 112

A minimal faithful permutation representation — 3 generators on 19 points:

(1,2,4,6,7,5,3)(13,17)(16,19);(12,14,15,18)(13,16,17,19);(2,3)(4,5)(6,7)(8,9,10,11)(12,13)(14,16)(15,17)(18,19)

Polycyclic presentation:

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

Conjugacy classes & character table

68 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#89318, #89326, #89350, …
maximal normal subgroup of#89318, #89326, #89350, …
maximal quotient of#89697, #89698, #89704, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(224, 121);