Finite Group Databasebeta

#34180334

order20224
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C26

Aliases

No aliases for this group.

Splittings

FittingC2×D4⋊C8×C79 ⋊ C2
SylowC79 ⋊ #8443

Subgroups

subgroupG/H
centerC23#14579131
commutatorC42×C79C22×C4
FrattiniC2×C42C22×D79
FittingC2×D4⋊C8×C79C2
socleC23×C79#120
prime radicalC2×D4×D316C2
cosocleC2×C42×C79C23
hypercenterC2×D4⋊C8D79
hypocenterC79#8443
LCSG ▷ C42×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C23 ◁ C2×C42 ◁ C2×D4⋊C8

1516 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)(93,98)(94,95)(97,99);(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)(85,89)(86,87)(90,91)(93,97)(94,95)(98,99);(80,81,82,83)(84,85,87,89,88,91,86,90)(92,93)(94,97)(95,98)(96,99)

Polycyclic presentation:

2^8,79|a^2=f,d^2=h,e^2=g,f^2=gh,b^a=bd,c^a=ce,d^a=dg,e^a=eg,d^b=dh,e^b=eg,f^b=fgh,i^b=i^78,d^c=dg,e^c=eg

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, 61633);