Finite Group Databasebeta

#34186235

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

Aliases

No aliases for this group.

Splittings

FittingC79×#1821 ⋊ C2
SylowC79 ⋊ #9509

Subgroups

subgroupG/H
centerC22#19098439
commutatorC24×C79C22×C4
FrattiniC23×C4C22×D79
FittingC79×#1821C2
socleC22×C79#386
prime radicalC22×C22⋊D79C2×C4
cosocleC23×C4×C79C23
hypercenter#1821D79
hypocenterC79#9509
LCSG ▷ C24×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23×C4 ◁ #1821

524 conjugacy classes of subgroups; only the 95 normal subgroups are shown.

normal subgroups only

This group has 524 conjugacy classes of subgroups — too many to draw. Only its 95 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) = 111
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 111 points:

(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)(80,83)(81,86)(82,88)(84,91)(85,92)(87,90)(89,94)(93,95);(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)(80,82,84,89)(81,85,87,93)(83,88,91,94)(86,92,90,95)(96,98,104,106,100,105,99,107)(97,101,103,111,102,109,110,108);(80,81)(82,85)(83,90,91,86)(84,87)(88,92,94,95)(89,93)(96,97,99,103,100,102,104,110)(98,101,106,108,105,109,107,111)

Polycyclic presentation:

2^8,79|a^2=f,b^2=dfgh,f^2=g,b^a=bd,c^a=ce,d^a=dg,e^a=eh,d^b=dg,e^b=eh,f^b=fg,d^c=dh,f^c=fh,i^c=i^78

Conjugacy classes & character table

1285 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 67534);