Finite Group Databasebeta

#34188784

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

Aliases

No aliases for this group.

Splittings

FittingC2×#483×C79 ⋊ C2
SylowC79 ⋊ #9960

Subgroups

subgroupG/H
centerC22#19098471
commutator, cosocleC23×C4×C79C23
FrattiniC23×C4C22×D79
FittingC2×#483×C79C2
socleC22×C79#392
prime radicalC2×#14579135C22
hypercenterC2×#483D79
hypocenterC79#9960
LCSG ▷ C23×C4×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23×C4 ◁ C2×#483

650 conjugacy classes of subgroups; only the 105 normal subgroups are shown.

normal subgroups only

This group has 650 conjugacy classes of subgroups — too many to draw. Only its 105 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) = 5056

A minimal faithful permutation representation — 3 generators on 103 points:

(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)(81,86)(82,83)(85,87)(88,91)(89,94)(90,96)(92,98)(93,99)(95,102)(97,103)(100,101);(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)(81,85)(82,83)(86,87)(88,90,92,97)(89,93,95,100)(91,96,98,103)(94,101,102,99);(80,81,84,87)(82,85,83,86)(88,89)(90,93)(91,94)(92,95)(96,99)(97,100)(98,102)(101,103)

Polycyclic presentation:

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

Conjugacy classes & character table

1519 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 70083);