Finite Group Databasebeta

#34189646

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Splittings

FittingC79×#2660 ⋊ C2
SylowC79 ⋊ #10093

Subgroups

subgroupG/H
centerC22#19098471
commutator, cosocleC2×C42×C79C23
FrattiniC2×C42C22×D79
FittingC79×#2660C2
socleC22×C79#392
prime radical#19099113C22
hypercenter#2660D79
hypocenterC79#10093
LCSG ▷ C2×C42×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C2×C42 ◁ #2660

496 conjugacy classes of subgroups; only the 85 normal subgroups are shown.

normal subgroups only

This group has 496 conjugacy classes of subgroups — too many to draw. Only its 85 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) = 111
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 111 points:

(1,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,79,77,75,73,71,69,67,65,63,61,59,57,55,53,51,49,47,45,43,41,39,37,35,33,31,29,27,25,23,21,19,17,15,13,11,9,7,5,3)(80,82,85,92)(81,87,89,95)(83,91,84,93)(86,94,88,90)(96,99,101,98)(97,103,105,106)(100,107,110,108)(102,104,111,109);(81,86)(83,84)(87,90)(88,89)(91,93)(94,95)(96,98,101,99)(97,102,105,111)(100,108,110,107)(103,109,106,104);(2,3)(4,5)(6,7)(8,9)(10,11)(12,13)(14,15)(16,17)(18,19)(20,21)(22,23)(24,25)(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)(82,90)(83,86)(84,88)(85,89)(87,91)(92,94)(93,95)(96,97)(98,106)(99,103)(100,109)(101,105)(102,107)(104,110)(108,111)

Polycyclic presentation:

2^8,79|b^2=h,c^2=g,d^2=g,e^2=gh,b^a=bd,c^a=ce,d^a=dg,e^a=egh,f^a=fg,i^a=i^78,c^b=cf,d^b=dg,e^b=egh,d^c=dh,e^c=egh

Conjugacy classes & character table

1279 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 70945);