Finite Group Databasebeta

#34175906

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #7445

Subgroups

subgroupG/H
centerC22#19098365
commutatorC2×C16×C79C2×C4
FrattiniC4×C16C2×D79
FittingC79×C4⋊C32C2
socle, prime radicalC22×C79#357
cosocleC4×C16×C79C22
hypercenterC4⋊C32D79
hypocenterC79#7445
LCSG ▷ C2×C16×C79 ▷ C2×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C42 ◁ C4×C8 ◁ C4×C16 ◁ C4⋊C32

132 conjugacy classes of subgroups; only the 53 normal subgroups are shown.

normal subgroups only

This group has 132 conjugacy classes of subgroups — too many to draw. Only its 53 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) = 119
transitive degreeμt(G) = 20224

A minimal faithful permutation representation — 2 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)(81,84)(82,86)(88,89,93,97)(90,99,102,116)(91,103,105,119)(92,106,104,96)(94,107,109,98)(95,111,112,100)(101,118,114,110)(108,115,113,117);(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)(80,81,82,85,83,84,86,87)(89,94)(90,98)(91,100)(92,104)(95,110)(96,113)(97,109)(99,103)(101,117)(102,107)(105,111)(106,108)(112,118)(114,115)(116,119)

Polycyclic presentation:

2^8,79|a^2=d,b^2=h,c^2=fg,d^2=efg,e^2=gh,f^2=gh,g^2=h,b^a=bc,c^a=ce,e^a=eg,f^a=fg,g^a=gh,i^a=i^78,c^b=cf,d^b=defg,e^b=eg,f^b=fg,g^b=gh,i^b=i^78

Conjugacy classes & character table

3169 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 57205);