Finite Group Databasebeta

#34181246

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

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #8627

Subgroups

subgroupG/H
centerC22#19098423
commutatorC22×C4×C79C22×C4
FrattiniC23×C4C22×D79
FittingC79×#2929C2
socleC22×C79#380
prime radical#525×C79C22
cosocleC23×C4×C79C23
hypercenter#2929D79
hypocenterC79#8627
LCSG ▷ C22×C4×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23×C4 ◁ #2929

456 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)(80,82)(81,84)(83,87)(85,86)(88,90)(89,95)(91,98)(92,99)(93,100)(94,97)(96,103)(101,102);(88,89,94,101,92,96,91,93)(90,95,97,102,99,103,98,100);(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)(82,86,87,84)(83,85)(89,93)(90,97)(91,94)(96,101)(98,99)(100,102)

Polycyclic presentation:

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

Conjugacy classes & character table

2224 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 62545);