Finite Group Databasebeta

#34209082

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1419 ⋊ C2
SylowC79 ⋊ #13691

Subgroups

subgroupG/H
centerC2#23765434
commutator, cosocleC2×C16×C79C23
FrattiniC2×C16C22×D79
FittingC79×#1419C2
socleC2×C79#2206
prime radical#23765713C2
hypercenter#1419D79
hypocenterC79#13691
LCSG ▷ C2×C16×C79 ▷ C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C2×C4 ◁ C2×C8 ◁ C2×C16 ◁ #1419

200 conjugacy classes of subgroups; only the 51 normal subgroups are shown.

normal subgroups only

This group has 200 conjugacy classes of subgroups — too many to draw. Only its 51 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)(82,94)(84,99)(85,107)(86,111)(87,102)(88,112)(90,114)(91,119)(92,121)(93,117)(95,124)(96,128)(97,125)(98,106)(100,108)(101,105)(103,116)(104,136)(109,141)(110,115)(113,132)(118,143)(120,130)(122,142)(123,127)(126,135)(129,134)(131,138)(133,139)(137,140);(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)(80,82,84,95,87,97,105,86)(81,88,90,92,93,110,103,122)(83,94,99,124,102,125,101,111)(85,96,104,126,109,129,137,108)(89,112,114,121,117,115,116,142)(91,113,118,106,120,138,127,139)(98,130,131,123,133,119,132,143)(100,107,128,136,135,141,134,140);(80,81)(82,92)(83,98)(84,103)(85,106)(86,110)(87,93)(88,95)(89,100)(90,105)(91,108)(94,123)(96,127)(97,122)(99,132)(101,131)(102,133)(104,113)(107,121)(109,139)(111,119)(112,136)(114,134)(115,140)(116,128)(117,135)(118,129)(120,126)(124,130)(125,143)(137,138)(141,142)

Polycyclic presentation:

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

Conjugacy classes & character table

1051 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 90381);