Finite Group Databasebeta

C79×#7430 #34119119

order20224
nilpotency class5
isoclinismisoclinic class of #7408
automorphism?
homologyAbelianization (H1) = C2×C4×C79 · Schur multiplier (H2) = C22

Aliases

direct productC79×#7430

Subgroups

subgroupG/H
center, socleC22×C79AΣL(1,𝔽16)
commutatorC2×C4⋊C4C2×C4×C79
Frattini, cosocle#390C22×C79
prime radicalC22×D4×C79D4
LCSG ▷ C2×C4⋊C4 ▷ C22×C4 ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C22×C79 ◁ C23×C79 ◁ C22×C4×C79 ◁ #390×C79 ◁ G

236 conjugacy classes of subgroups; only the 46 normal subgroups are shown.

normal subgroups only

This group has 236 conjugacy classes of subgroups — too many to draw. Only its 46 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) = 103
transitive degreeμt(G) = 2528

A minimal faithful permutation representation — 2 generators on 103 points:

(2,5,6,7)(9,10)(11,18,19,14)(12,16,21,15)(13,17)(20,23,24,22)(25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103);(1,2)(3,7)(4,6)(5,8)(9,11,12,19,13,20,21,24)(10,14,16,18,17,22,15,23)

Conjugacy classes & character table

2449 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 418);