Finite Group Databasebeta

#34196400

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #11247

Subgroups

subgroupG/H
centerC4#19098446
commutatorC22×C4×C79C22×C4
FrattiniC23×C4C22×D79
FittingC2×H(3,ℤ/4)×C79C2
socleC2×C79#1441
prime radicalC24×C79#41
cosocleC23×C4×C79C23
hypercenterC2×H(3,ℤ/4)D79
hypocenterC79#11247
LCSG ▷ C22×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C23×C4 ◁ C2×H(3,ℤ/4)

620 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 111
transitive degreeμt(G) = 2528

A minimal faithful permutation representation — 3 generators on 111 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)(80,83,84,98,86,99,85,101)(81,88,89,106,91,107,90,96)(82,93,94,108,95,109,100,97)(87,102,92,105,104,111,103,110);(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)(80,82,84,94,86,95,85,100)(81,87,89,92,91,104,90,103)(83,97,98,93,99,108,101,109)(88,105,106,111,107,110,96,102);(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)(80,81)(82,92)(83,96,99,106)(84,90)(85,89)(86,91)(87,94)(88,98,107,101)(93,102,109,111)(95,103)(97,105,108,110)(100,104)

Polycyclic presentation:

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

Conjugacy classes & character table

1762 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 77699);