Finite Group Databasebeta

#34191527

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #10392

Subgroups

subgroupG/H
centerC22#19098475
commutator, cosocleC25×C79C23
FrattiniC25C22×D79
FittingC79×#1781C2
socleC22×C79#393
prime radicalC23×D4×C79C22
hypercenter#1781D79
hypocenterC79#10392
LCSG ▷ C25×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C25 ◁ #1781

746 conjugacy classes of subgroups; only the 75 normal subgroups are shown.

normal subgroups only

This group has 746 conjugacy classes of subgroups — too many to draw. Only its 75 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 — 3 generators on 103 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)(84,87)(88,91)(89,94)(90,96)(92,100)(93,101)(95,98)(97,99)(102,103);(80,82)(81,84)(83,86)(85,87)(88,90)(89,93)(91,99,100,96)(92,97)(94,101,98,103)(95,102);(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)(82,84)(83,85)(86,87)(88,89,92,95)(90,93,97,102)(91,98)(94,100)(96,103)(99,101)

Polycyclic presentation:

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

Conjugacy classes & character table

1276 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 72826);