Finite Group Databasebeta

#34209135

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C22

Aliases

No aliases for this group.

Splittings

FittingC79×#1425 ⋊ C2
SylowC79 ⋊ #13700

Subgroups

subgroupG/H
centerC2#23765487
commutator, cosocleC2×C16×C79C23
FrattiniC2×C16C22×D79
FittingC79×#1425C2
socleC2×C79#2215
hypercenter#1425D79
hypocenterC79#13700
LCSG ▷ C2×C16×C79 ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C2×C8 ◁ C2×C16 ◁ #1425

188 conjugacy classes of subgroups; only the 53 normal subgroups are shown.

normal subgroups only

This group has 188 conjugacy classes of subgroups — too many to draw. Only its 53 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)(80,82)(81,90)(83,96)(84,103)(85,97)(86,95)(87,98)(88,106)(89,112)(91,120)(92,118)(93,117)(94,119)(99,125)(100,129)(101,124)(102,127)(104,130)(105,128)(107,131)(108,134)(109,132)(110,116)(111,133)(113,138)(114,126)(115,137)(121,142)(122,140)(123,139)(135,143)(136,141);(80,81,89,109,85,92,100,108,84,91,113,135,104,121,102,111,87,94,115,136,105,123,101,110,86,93,114,122,99,107,83,88)(82,90,112,132,97,118,129,134,103,120,138,143,130,142,127,133,98,119,137,141,128,139,124,116,95,117,126,140,125,131,96,106);(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)(81,88)(82,95)(83,89)(84,86)(85,99)(90,116)(91,110)(92,122)(93,108)(94,111)(96,126)(97,128)(98,103)(100,114)(101,113)(102,115)(104,105)(106,117)(107,109)(112,124)(118,141)(119,134)(120,133)(121,136)(123,135)(127,138)(129,137)(131,140)(132,139)(142,143)

Polycyclic presentation:

2^8,79|b^2=df,d^2=fg,e^2=h,f^2=gh,g^2=h,b^a=bd,c^a=ce,d^a=df,e^a=eh,f^a=fg,g^a=gh,i^a=i^78,e^c=eh,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, 90434);