Finite Group Databasebeta

#34208905

order20224
automorphism?
homologyAbelianization (H1) = C22×C16 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #13660

Subgroups

subgroupG/H
center, FrattiniC2×C16C22×D79
commutator, socle, prime radicalC22×C79C22×C16
FittingQ8×C16×C79C2
cosocleC2×C16×C79C23
hypercenterQ8×C16D79
hypocenterC79#13660
LCSG ▷ C22×C79 ▷ C79
UCSC1 ◁ C2×C16 ◁ Q8×C16

158 conjugacy classes of subgroups; only the 113 normal subgroups are shown.

normal subgroups only

This group has 158 conjugacy classes of subgroups — too many to draw. Only its 113 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 — 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)(88,90,91,100,92,101,103,115,93,98,99,112,105,113,114,119,94,102,104,108,106,116,117,118,107,89,95,96,109,97,110,111);(80,82,83,87)(81,84,85,86);(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)(80,81,83,85)(82,86,87,84)(88,89,91,96,92,97,103,111,93,90,99,100,105,101,114,115,94,98,104,112,106,113,117,119,107,102,95,108,109,116,110,118)

Polycyclic presentation:

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

Conjugacy classes & character table

3232 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 90204);