Finite Group Databasebeta

#34181588

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #8697

Subgroups

subgroupG/H
centerC22#19098423
commutatorC42×C79C22×C4
FrattiniC2×C42C22×D79
FittingC79×#2966C2
socleC22×C79#380
prime radical#121×C79D4
cosocleC2×C42×C79C23
hypercenter#2966D79
hypocenterC79#8697
LCSG ▷ C42×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C2×C42 ◁ #2966

384 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 103
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 103 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)(80,83)(81,85)(82,87)(84,86)(88,91)(89,94)(90,98)(92,102)(93,96)(95,101)(97,100)(99,103);(80,82,85,84)(81,86,83,87)(88,90,93,100,94,101,92,99)(89,95,102,103,91,98,96,97);(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)(80,81,84,87,85,83,82,86)(88,89,93,96,94,91,92,102)(90,97,100,98,101,103,99,95)

Polycyclic presentation:

2^8,79|a^2=f,b^2=dgh,d^2=g,e^2=gh,f^2=gh,b^a=bd,c^a=ce,d^a=dg,e^a=eh,i^a=i^78,e^c=egh,f^c=fg

Conjugacy classes & character table

2230 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 62887);