Finite Group Databasebeta

#34181781

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C22×C4

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #8750

Subgroups

subgroupG/H
centerC22#19098426
commutatorC24×C79C22×C4
FrattiniC25C22×D79
FittingC79×#2312C2
socleC22×C79#381
prime radical, cosocleC25×C79C23
hypercenter#2312D79
hypocenterC79#8750
LCSG ▷ C24×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C25 ◁ #2312

538 conjugacy classes of subgroups; only the 99 normal subgroups are shown.

normal subgroups only

This group has 538 conjugacy classes of subgroups — too many to draw. Only its 99 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) = 2528

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)(80,83)(81,86,87,91)(82,89)(84,92)(85,93,88,94)(90,95)(96,99)(97,102)(98,104)(100,107)(101,108)(103,106)(105,111)(109,110);(80,82)(81,85)(83,89)(84,90)(86,93)(87,88)(91,94)(92,95)(96,98,100,105)(97,101,103,109)(99,104,107,111)(102,108,106,110);(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)(82,88,90,85)(83,91)(84,87)(86,92)(89,93,95,94)(96,97)(98,101)(99,106,107,102)(100,103)(104,110,111,108)(105,109)

Polycyclic presentation:

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

Conjugacy classes & character table

1750 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 63080);