Finite Group Databasebeta

#34204644

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C2×C4

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #12887

Subgroups

subgroupG/H
centerC22C2×#14579092
commutatorC2×C8×C79C22×C4
FrattiniC22×C8C22×D79
FittingC79×#1846C2
socleC22×C79C2×#106
prime radicalC23×C79C2×SD16
cosocleC22×C8×C79C23
hypercenter#1846D79
hypocenterC79#12887
LCSG ▷ C2×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C2×C42 ◁ C2×C4×C8 ◁ #1846

286 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 119
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 119 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)(81,85)(84,87)(88,91,92,107,93,90,102,103,94,105,101,117,110,104,118,116)(89,96,97,106,98,113,108,115,99,114,111,119,109,95,112,100);(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)(80,82,83,86)(81,84,85,87)(88,90,101,116,93,105,118,107,94,104,92,103,110,91,102,117)(89,95,111,115,98,96,112,119,99,113,97,100,109,114,108,106);(80,81)(82,84)(83,85)(86,87)(88,89)(90,100,104,115)(91,106,105,119)(92,108)(93,109)(94,99)(95,103,113,116)(96,107,114,117)(97,102)(98,110)(101,112)(111,118)

Polycyclic presentation:

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

Conjugacy classes & character table

1768 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 85943);