Finite Group Databasebeta

#34203466

order20224
automorphism?
homologyAbelianization (H1) = C2×C42 · Schur multiplier (H2) = C22×C4

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #12633

Subgroups

subgroupG/H
centerC4#99×D79
commutatorC2×C4×C79C2×C42
FrattiniC2×#41C22×D79
FittingC79×#2132C2
socleC2×C79C4×#99
prime radical#532×C79C22
cosocleC2×#41×C79C23
hypercenter#2132D79
hypocenterC79#12633
LCSG ▷ C2×C4×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C4 ◁ C2×C4 ◁ C2×#41 ◁ #2132

460 conjugacy classes of subgroups; only the 121 normal subgroups are shown.

normal subgroups only

This group has 460 conjugacy classes of subgroups — too many to draw. Only its 121 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) = 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)(80,83,85,97,86,81,88,90)(82,92,94,108,95,87,101,102)(84,96,98,110,99,89,103,104)(91,105,106,93,107,100,111,109);(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)(81,87)(83,92)(84,93,99,109)(85,94)(86,95)(88,101)(89,91,96,107)(90,102)(97,108)(98,100,103,105)(104,106,110,111);(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)(80,81,85,90,86,83,88,97)(82,91,94,106,95,107,101,111)(84,96,98,110,99,89,103,104)(87,100,102,109,92,105,108,93)

Polycyclic presentation:

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

Conjugacy classes & character table

1066 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 84765);