Finite Group Databasebeta

#34205293

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Splittings

FittingC2×#362×C79 ⋊ C2
SylowC79 ⋊ #13006

Subgroups

subgroupG/H
centerC2#23763714
commutatorC2×C8×C79C22×C4
FrattiniC22×C8C22×D79
FittingC2×#362×C79C2
socleC2×C79#1874
prime radicalC2×#11929624D4
cosocleC22×C8×C79C23
hypercenterC2×#362D79
hypocenterC79#13006
LCSG ▷ C2×C8×C79 ▷ C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2 ◁ C22×C4 ◁ C22×C8 ◁ C2×#362

472 conjugacy classes of subgroups; only the 109 normal subgroups are shown.

normal subgroups only

This group has 472 conjugacy classes of subgroups — too many to draw. Only its 109 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) = 143
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 143 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)(81,89)(82,95)(84,107)(85,104)(86,113)(87,105)(88,115)(90,124)(91,121)(92,126)(93,122)(94,128)(96,136)(97,134)(98,137)(99,135)(100,114)(101,109)(102,111)(103,108)(106,119)(110,132)(112,131)(116,139)(117,130)(118,143)(120,127)(123,142)(125,141)(129,140)(133,138);(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)(80,82,85,110,87,99,111,97)(81,88,114,116,93,118,91,125)(83,95,104,132,105,135,102,134)(84,98,108,96,109,138,86,112)(89,115,100,139,122,143,121,141)(90,123,127,129,106,117,92,94)(101,133,113,131,107,137,103,136)(119,130,126,128,124,142,120,140);(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)(80,81,86,92,111,114,109,90,87,93,108,127,85,91,84,106)(82,94,98,88,110,117,96,125,99,129,138,118,97,123,112,116)(83,100,103,119,102,122,107,126,105,121,113,124,104,89,101,120)(95,130,133,139,132,140,131,115,135,142,137,141,134,128,136,143)

Polycyclic presentation:

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

Conjugacy classes & character table

1288 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 86592);