Finite Group Databasebeta

#34192953

order20224
automorphism?
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C2

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #10612

Subgroups

subgroupG/H
centerC22#19098486
commutator, cosocleC2×C42×C79C23
FrattiniC2×C42C22×D79
FittingC79×#1545C2
socleC22×C79#396
prime radicalC2×#127×C79C22
hypercenter#1545D79
hypocenterC79#10612
LCSG ▷ C2×C42×C79 ▷ C22×C79 ▷ C79
UCSC1 ◁ C22 ◁ C2×C42 ◁ #1545

328 conjugacy classes of subgroups; only the 83 normal subgroups are shown.

normal subgroups only

This group has 328 conjugacy classes of subgroups — too many to draw. Only its 83 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:

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

Polycyclic presentation:

2^8,79|a^2=de,b^2=dg,d^2=g,e^2=h,f^2=gh,b^a=bd,c^a=ce,d^a=dg,e^a=eg,f^a=fg,c^b=cf,f^b=fh,i^b=i^78,d^c=dg,e^c=eh,f^c=fgh

Conjugacy classes & character table

1282 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 74252);