Finite Group Databasebeta

C7×#1903 #11730372

order896
nilpotency class3
isoclinismisoclinic class of #1902
automorphism?
homologyAbelianization (H1) = C22×C4×C7 · Schur multiplier (H2) = C24

Aliases

direct productC7×#1903

Subgroups

subgroupG/H
center, socleC2×C7#386
commutatorC2×C4C22×C4×C7
Frattini, cosocleC22×C4C23×C7
prime radicalC2×C7×AGL(1,ℤ/8)C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C7 ◁ C22×C4×C7 ◁ G

324 conjugacy classes of subgroups; only the 108 normal subgroups are shown.

normal subgroups only

This group has 324 conjugacy classes of subgroups — too many to draw. Only its 108 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 23
transitive degreeμt(G) = 112

A minimal faithful permutation representation — 3 generators on 23 points:

(1,2,3,4,5,6,7)(8,9,14,17)(10,13,16,12)(11,18)(15,19)(20,22)(21,23);(8,10,12,9,14,16,13,17)(11,18,20,15,21,23,19,22);(8,11)(9,15)(10,18)(12,20)(13,19)(14,21)(16,23)(17,22)

Conjugacy classes & character table

203 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofD7×#1903, #13355668, #13367704, …
maximal subgroup ofC2×C7×#1903, C7×#20995, C7×#22284, …
maximal normal subgroup ofC2×C7×#1903, C7×#20995, C7×#22284, …
maximal quotient ofC7×#9089, C7×#9090, C7×#9093, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(896, 5138);