Finite Group Databasebeta

#34180942

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #8561

Subgroups

subgroupG/H
centerC23C2×C22⋊Dic79
commutatorC24×C79C22×C4
FrattiniC23×C4C22×D79
FittingC2×#388×C79C2
socleC23×C79C2×C22⋊C4
prime radicalC25×C79C2×C4
cosocleC23×C4×C79C23
hypercenterC2×#388D79
hypocenterC79#8561
LCSG ▷ C24×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C23 ◁ C22×C42 ◁ C2×#388

678 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 99
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 99 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)(84,86)(85,88)(87,91)(89,90)(93,98)(94,96);(80,81,82,83)(92,94,95,96)(93,97,98,99);(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)(84,85)(86,90,91,88)(87,89)(92,93,96,97,95,98,94,99)

Polycyclic presentation:

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

Conjugacy classes & character table

2236 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 62241);