Finite Group Databasebeta

#34175756

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1317 ⋊ C2
SylowC79 ⋊ #7395

Subgroups

subgroupG/H
centerC2#23761398
commutatorC2×C22⋊C4×C79C2×C4
Frattini#381C2×D79
FittingC79×#1317C2
socleC2×C79#1343
prime radical#19099125C4
cosocle#381×C79C22
hypercenter#1317D79
hypocenterC79#7395
LCSG ▷ C2×C22⋊C4×C79 ▷ C24×C79 ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C23 ◁ C24 ◁ #381 ◁ #1317

284 conjugacy classes of subgroups; only the 37 normal subgroups are shown.

normal subgroups only

This group has 284 conjugacy classes of subgroups — too many to draw. Only its 37 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 — 2 generators on 111 points:

(1,3)(2,7)(4,17)(5,15)(6,16)(8,12)(9,26)(10,22)(11,23)(13,19)(14,20)(18,30)(21,29)(24,32)(25,28)(27,31)(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)(83,84)(85,86)(87,88)(89,90)(91,92)(93,94)(95,96)(97,98)(99,100)(101,102)(103,104)(105,106)(107,108)(109,110);(1,2,4,9,6,11,19,27)(3,12,14,23,16,28,30,7)(5,10,18,8,21,24,20,25)(13,22,29,26,17,32,15,31)(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)(82,83)(84,85)(86,87)(88,89)(90,91)(92,93)(94,95)(96,97)(98,99)(100,101)(102,103)(104,105)(106,107)(108,109)(110,111)

Polycyclic presentation:

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

Conjugacy classes & character table

1039 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 57055);