Finite Group Databasebeta

C22×#17989487 #34029867

order18688
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC22×#17989487

Splittings

FittingC26×C73 ⋊ C4
SylowC73 ⋊ C22×AΣL(1,𝔽16)

Subgroups

subgroupG/H
centerC23#14556649
commutatorC23×C73C23×C4
FrattiniC23C23×#64408
FittingC26×C73C4
socleC23×C73#99
prime radicalC22×#14556560C2
cosocleC2×C22⋊D73C24
hypercenterC26#64408
hypocenterC73C22×AΣL(1,𝔽16)
LCSG ▷ C23×C73 ▷ C22×C73 ▷ C2×C73 ▷ C73
UCSC1 ◁ C23 ◁ C24 ◁ C25 ◁ C26

2774 conjugacy classes of subgroups; only the 240 normal subgroups are shown.

normal subgroups only

This group has 2774 conjugacy classes of subgroups — too many to draw. Only its 240 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) = 85
transitive degreeμt(G) = 2336

A minimal faithful permutation representation — 4 generators on 85 points:

(6,9)(10,11)(13,14,17,22,31,44,61,46,29,41,56,72,81,85,84,79,67,51,38,27,36,49,66,74,54,37,24,15,19,26,35,48,65,78,63,42,58,75,57,73,82,77,64,47,34,25,18,23,32,45,62,70,50,33,20,28,39,52,68,80,83,76,59,71,55,40,53,69,60,43,30,21,16);(5,6)(7,11,12,9)(8,10)(14,15,16,18)(17,20,21,27)(19,24,25,23)(22,29,30,40)(26,33,34,36)(28,37,38,32)(31,42,43,57)(35,46,47,53)(39,50,51,49)(41,54,55,45)(44,59,60,72)(48,63,64,73)(52,61,67,69)(56,70,71,66)(58,74,75,62)(65,76,77,81)(68,78,79,82)(80,83,84,85);(3,4);(1,2)

Conjugacy classes & character table

1204 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(18688, 1113451);