Finite Group Databasebeta

#34207008

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

FittingC79×#2145 ⋊ C2
SylowC79 ⋊ #13311

Subgroups

subgroupG/H
centerC2#23764397
commutator, cosocleC22×C8×C79C23
FrattiniC22×C8C22×D79
FittingC79×#2145C2
socleC2×C79#1999
prime radical#23773116C2
hypercenter#2145D79
hypocenterC79#13311
LCSG ▷ C22×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C22×C4 ◁ C22×C8 ◁ #2145

520 conjugacy classes of subgroups; only the 93 normal subgroups are shown.

normal subgroups only

This group has 520 conjugacy classes of subgroups — too many to draw. Only its 93 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)(82,95)(84,101)(85,109)(86,102)(87,103)(88,110)(90,115)(91,120)(92,116)(93,100)(94,121)(96,125)(97,130)(98,126)(99,127)(104,132)(105,134)(106,137)(107,135)(108,136)(111,138)(112,114)(113,131)(117,124)(118,142)(119,133)(122,141)(123,140)(128,139)(129,143);(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)(80,82,87,99)(81,88,92,112)(83,95,103,127)(84,105,108,128)(85,98,86,97)(89,114,116,110)(90,117,119,122)(91,113,93,111)(94,118,123,104)(96,106,129,107)(100,131,120,138)(101,134,136,139)(102,130,109,126)(115,141,133,124)(121,132,140,142)(125,137,143,135);(80,81)(82,94)(83,100)(84,104)(85,93)(86,91)(87,92)(88,96)(89,102)(90,107)(95,124)(97,117)(98,122)(99,123)(101,133)(103,120)(105,111)(106,119)(108,118)(109,116)(110,134)(112,129)(113,128)(114,139)(115,136)(121,126)(125,131)(127,141)(130,140)(132,135)(137,142)(138,143)

Polycyclic presentation:

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

Conjugacy classes & character table

1282 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 88307);