Finite Group Databasebeta

#34209241

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C4

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #13720

Subgroups

subgroupG/H
centerC22C2×#14579102
commutator, cosocleC2×C16×C79C23
FrattiniC2×C16C22×D79
FittingC79×#2247C2
socle, prime radicalC22×C79C2×D16
hypercenter#2247D79
hypocenterC79#13720
LCSG ▷ C2×C16×C79 ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C42 ◁ C4×C8 ◁ C4×C16 ◁ #2247

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

normal subgroups only

This group has 182 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) = 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)(81,85)(84,87)(88,91,92,100,112,105,119,108,95,99,109,101,116,114,93,110,96,111,97,106,102,118,115,90,103,104,117,89,94,98,113,107);(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)(80,82,83,86)(81,84,85,87)(88,90,93,105,94,106,109,91,103,110,119,98,102,101,92,104,96,108,113,118,116,100,117,111,95,107,115,114,112,89,97,99);(80,81)(82,84)(83,85)(86,87)(88,89,96,101)(90,102,108,112)(91,109,111,117)(92,104,97,99)(93,114,113,98)(94,107,116,110)(95,106,103,100)(105,119,118,115)

Polycyclic presentation:

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

Conjugacy classes & character table

1552 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 90540);