Finite Group Databasebeta

#34209301

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #13734

Subgroups

subgroupG/H
centerC22C2×#14579102
commutator, cosocleC2×C16×C79C23
FrattiniC2×C16C22×D79
FittingC79×#2253C2
socle, prime radicalC22×C79C2×D16
hypercenter#2253D79
hypocenterC79#13734
LCSG ▷ C2×C16×C79 ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C42 ◁ C4×C8 ◁ C4×C16 ◁ #2253

150 conjugacy classes of subgroups; only the 71 normal subgroups are shown.

normal subgroups only

This group has 150 conjugacy classes of subgroups — too many to draw. Only its 71 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) = 119
transitive degreeμt(G) = 20224

A minimal faithful permutation representation — 3 generators on 119 points:

(1,2)(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)(88,89,96,106,91,97,111,114,102,110,116,119,115,117,101,104,93,95,108,118,103,109,100,107,92,98,112,113,99,105,90,94);(80,82,83,87)(81,84,85,86)(89,95)(94,104)(97,109)(98,110)(105,117)(106,118)(107,114)(113,119);(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)(80,81,83,85)(82,86,87,84)(89,94)(90,96)(91,99)(92,102)(95,104)(97,113)(98,114)(100,116)(101,108)(103,115)(105,106)(107,110)(109,119)(111,112)(117,118)

Polycyclic presentation:

2^8,79|a^2=d,b^2=d,c^2=ef,e^2=fg,f^2=gh,g^2=h,b^a=bd,c^a=ce,e^a=ef,f^a=fg,g^a=gh,i^a=i^78,c^b=ch,i^c=i^78

Conjugacy classes & character table

1528 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 90600);