Finite Group Databasebeta

#34187063

order20224
automorphism?
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C23×C4

Aliases

No aliases for this group.

Splittings

FittingC79×#1744 ⋊ C2
SylowC79 ⋊ #9642

Subgroups

subgroupG/H
centerC22×C4C2×D316
commutatorC2×C4×C79C22×C8
FrattiniC2×C42C22×D79
FittingC79×#1744C2
socleC23×C79C2×C22⋊C4
prime radicalC2×#14579158C4
cosocleC2×C42×C79C23
hypercenter#1744D79
hypocenterC79#9642
LCSG ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22×C4 ◁ C43 ◁ #1744

698 conjugacy classes of subgroups; only the 171 normal subgroups are shown.

normal subgroups only

This group has 698 conjugacy classes of subgroups — too many to draw. Only its 171 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) = 99
transitive degreeμt(G) = 10112

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

Polycyclic presentation:

2^8,79|a^2=f,b^2=dfg,c^2=eg,d^2=g,f^2=h,b^a=bd,c^a=ce,d^a=dg,i^a=i^78,c^b=cg

Conjugacy classes & character table

3184 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 68362);