Finite Group Databasebeta

#34185918

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

Aliases

No aliases for this group.

Splittings

FittingC79×#2879 ⋊ C2
SylowC79 ⋊ #9445

Subgroups

subgroupG/H
centerC22#19098442
commutatorC22×C4×C79C22×C4
FrattiniC23×C4C22×D79
FittingC79×#2879C2
socleC22×C79#386
prime radical#23767015C2
cosocleC23×C4×C79C23
hypercenter#2879D79
hypocenterC79#9445
LCSG ▷ C22×C4×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23×C4 ◁ #2879

770 conjugacy classes of subgroups; only the 107 normal subgroups are shown.

normal subgroups only

This group has 770 conjugacy classes of subgroups — too many to draw. Only its 107 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 103
transitive degreeμt(G) = 2528

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

Polycyclic presentation:

2^8,79|a^2=f,b^2=dfg,d^2=gh,b^a=bd,c^a=ce,d^a=dg,e^a=egh,i^a=i^78,d^b=dh,e^b=egh,f^b=fh,d^c=dgh,f^c=fgh

Conjugacy classes & character table

1753 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 67217);