Finite Group Databasebeta

C7×#2122 #11730591

order896
nilpotency class4
isoclinismisoclinic class of #2121
automorphism?
homologyAbelianization (H1) = C22×C4×C7 · Schur multiplier (H2) = C22×C4

Aliases

direct productC7×#2122

Subgroups

subgroupG/H
center, socleC2×C7C2×#99
commutatorC23C22×C4×C7
Frattini, cosocleC2×D4C23×C7
prime radicalC7×#535C2
LCSG ▷ C23 ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C2×C7 ◁ C2×C4×C7 ◁ C2×C7×#41 ◁ G

266 conjugacy classes of subgroups; only the 84 normal subgroups are shown.

normal subgroups only

This group has 266 conjugacy classes of subgroups — too many to draw. Only its 84 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)(10,14)(11,18,19,13)(12,15)(16,22)(17,21,23,20);(9,13)(10,16)(14,21)(15,18)(17,23)(20,22);(8,10,12,16)(9,14,15,22)(11,17,19,23)(13,20,18,21)

Conjugacy classes & character table

161 conjugacy classes — view the full character table.

Relationships

Fitting subgroup of#13269362, #13269377, #13269390, …
maximal subgroup ofC7×#12715, C7×#12718, C7×#12721, …
maximal normal subgroup ofC7×#12715, C7×#12718, C7×#12721, …
maximal quotient ofC7×#11427, C7×#11454, C7×#11473, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(896, 5357);