Finite Group Databasebeta

#34178709

order20224
automorphism?
homologyAbelianization (H1) = C2×C4×C8 · Schur multiplier (H2) = C4×C8

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #8137

Subgroups

subgroupG/H
centerC2×C4C42×D79
commutatorC4×C79C2×C4×C8
FrattiniC2×C42C22×D79
FittingC79×#1275C2
socleC22×C79#376
prime radicalC23×C79#117
cosocleC2×C42×C79C23
hypercenter#1275D79
hypocenterC79#8137
LCSG ▷ C4×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ #1275

354 conjugacy classes of subgroups; only the 155 normal subgroups are shown.

normal subgroups only

This group has 354 conjugacy classes of subgroups — too many to draw. Only its 155 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) = 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)(88,91,92,102,93,103,104,115)(89,95,96,107,97,108,109,117)(90,99,100,112,101,113,114,119)(94,105,98,110,106,116,111,118);(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)(88,90)(89,94,97,106)(91,99)(92,100)(93,101)(95,105,108,116)(96,98,109,111)(102,112)(103,113)(104,114)(107,110,117,118)(115,119);(80,81,82,84,83,85,86,87)(88,89)(90,98,101,111)(91,95)(92,96)(93,97)(94,100,106,114)(99,110,113,118)(102,107)(103,108)(104,109)(105,112,116,119)(115,117)

Polycyclic presentation:

2^8,79|a^2=e,b^2=f,c^2=d,d^2=g,e^2=h,b^a=bd,f^a=fg,e^b=eg,i^b=i^78,i^c=i^78

Conjugacy classes & character table

1804 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 60008);