Finite Group Databasebeta

#34182952

order20224
automorphism?
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C25

Aliases

No aliases for this group.

Splittings

FittingC79×#1459 ⋊ C2
SylowC79 ⋊ #8965

Subgroups

subgroupG/H
centerC2×C4#14579131
commutatorC23×C79C22×C8
FrattiniC23×C4C22×D79
FittingC79×#1459C2
socleC22×C79#386
prime radicalC2×#14579129C4
cosocleC23×C4×C79C23
hypercenter#1459D79
hypocenterC79#8965
LCSG ▷ C23×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C2×C4 ◁ C23×C4 ◁ #1459

934 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 95
transitive degreeμt(G) = 2528

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

Polycyclic presentation:

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

Conjugacy classes & character table

1780 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 64251);