Finite Group Databasebeta

#34200386

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

Aliases

No aliases for this group.

Splittings

FittingC79×#2188 ⋊ C2
SylowC79 ⋊ #12106

Subgroups

subgroupG/H
centerC22#19098695
commutator, cosocleC22×C8×C79C23
FrattiniC22×C8C22×D79
FittingC79×#2188C2
socleC22×C79#447
prime radicalC23×D79D8
hypercenter#2188D79
hypocenterC79#12106
LCSG ▷ C22×C8×C79 ▷ C2×C4×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C22×C4 ◁ C22×C8 ◁ #2188

424 conjugacy classes of subgroups; only the 63 normal subgroups are shown.

normal subgroups only

This group has 424 conjugacy classes of subgroups — too many to draw. Only its 63 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) = 119
transitive degreeμt(G) = 5056

A minimal faithful permutation representation — 3 generators on 119 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)(80,82)(81,84)(83,86)(85,87);(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)(82,84)(83,85)(86,87)(88,90,93,101)(89,94,97,111)(91,103,106,119)(92,108,104,100)(95,113,114,118)(96,115,107,110)(98,116,117,102)(99,112,109,105);(84,87)(88,89,93,97)(90,98,101,117)(91,102,106,116)(92,107,104,96)(94,109,111,99)(95,112,114,105)(100,118,108,113)(103,115,119,110)

Polycyclic presentation:

2^8,79|a^2=h,b^2=h,d^2=fh,f^2=h,b^a=bd,c^a=ce,d^a=df,f^a=fh,d^b=df,e^b=eg,f^b=fh,d^c=dg,i^c=i^78

Conjugacy classes & character table

1165 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 81685);