Finite Group Databasebeta

#34202666

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1366 ⋊ C2
SylowC79 ⋊ #12464

Subgroups

subgroupG/H
centerC2#23762798
commutator, cosocleC4×C8×C79C23
FrattiniC4×C8C22×D79
FittingC79×#1366C2
socleC2×C79#1675
prime radical#14579183D4
hypercenter#1366D79
hypocenterC79#12464
LCSG ▷ C4×C8×C79 ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C4×C8 ◁ #1366

172 conjugacy classes of subgroups; only the 55 normal subgroups are shown.

normal subgroups only

This group has 172 conjugacy classes of subgroups — too many to draw. Only its 55 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) = 143
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 143 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)(80,83)(81,89)(82,96)(84,102)(85,109)(86,103)(87,105)(88,112)(90,117)(91,122)(92,118)(93,120)(94,123)(95,128)(97,130)(98,135)(99,131)(100,133)(101,121)(104,107)(106,137)(108,116)(110,119)(111,138)(113,141)(114,129)(115,140)(124,139)(125,142)(126,136)(127,143)(132,134);(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)(80,82,95,127,86,99,84,97,87,100,85,98,107,134,108,111)(81,88,91,113,92,114,90,94,93,115,106,125,110,124,121,126)(83,96,128,143,103,131,102,130,105,133,109,135,104,132,116,138)(89,112,122,141,118,129,117,123,120,140,137,142,119,139,101,136);(80,81,87,93)(82,94,100,126)(83,101)(84,106,108,91)(85,90,95,121)(86,110,107,92)(88,111,115,97)(89,116)(96,129)(98,124,127,114)(99,113,134,125)(102,120)(103,137)(104,122)(105,117)(109,118)(112,131)(119,128)(123,138)(130,136)(132,140)(133,139)(135,142)(141,143)

Polycyclic presentation:

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

Conjugacy classes & character table

934 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 83965);