Finite Group Databasebeta

#34187296

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #9690

Subgroups

subgroupG/H
centerC23C2×C22⋊Dic79
commutatorC22×C4×C79C22×C4
FrattiniC2×C42C22×D79
FittingC79×#2859C2
socle, prime radicalC23×C79C2×C22⋊C4
cosocleC2×C42×C79C23
hypercenter#2859D79
hypocenterC79#9690
LCSG ▷ C22×C4×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C23 ◁ C43 ◁ #2859

456 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 107
transitive degreeμt(G) = 20224

A minimal faithful permutation representation — 3 generators on 107 points:

(1,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,79,77,75,73,71,69,67,65,63,61,59,57,55,53,51,49,47,45,43,41,39,37,35,33,31,29,27,25,23,21,19,17,15,13,11,9,7,5,3)(80,81,82,83)(93,98)(94,101)(99,106)(102,103);(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)(84,85,86,90,87,89,91,88)(92,94,100,102,95,101,96,103)(93,97,99,107,98,104,106,105);(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)(81,83)(85,88,89,90)(92,93,96,99,95,98,100,106)(94,97,102,105,101,104,103,107)

Polycyclic presentation:

2^8,79|a^2=f,b^2=dfg,c^2=eg,d^2=gh,f^2=g,b^a=bd,c^a=ce,d^a=dg,i^a=i^78,c^b=cg,d^b=dh,f^b=fh,i^b=i^78

Conjugacy classes & character table

1762 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 68595);