Finite Group Databasebeta

#34177640

order20224
automorphism?
homologyAbelianization (H1) = C43 · Schur multiplier (H2) = C22×C8

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7844

Subgroups

subgroupG/H
center, FrattiniC2×C42C22×D79
commutatorC22×C79C43
FittingC2×#322×C79C2
socle, prime radicalC23×C79C2×C42
cosocleC2×C42×C79C23
hypercenterC2×#322D79
hypocenterC79#7844
LCSG ▷ C22×C79 ▷ C79
UCSC1 ◁ C2×C42 ◁ C2×#322

518 conjugacy classes of subgroups; only the 291 normal subgroups are shown.

normal subgroups only

This group has 518 conjugacy classes of subgroups — too many to draw. Only its 291 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) = 107
transitive degreeμt(G) = 20224

A minimal faithful permutation representation — 3 generators on 107 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)(80,81,82,83)(85,90)(86,91)(94,100)(97,103)(101,106)(104,107);(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)(84,86,88,90,89,91,87,85)(92,94)(93,97)(95,101)(96,100)(98,104)(99,103)(102,106)(105,107);(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)(84,85,87,91,89,90,88,86)(92,93,95,98,96,99,102,105)(94,97,101,104,100,103,106,107)

Polycyclic presentation:

2^8,79|a^2=d,b^2=e,c^2=f,d^2=g,e^2=h,c^a=ch,i^a=i^78,c^b=cg,i^b=i^78,i^c=i^78

Conjugacy classes & character table

3232 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 58939);